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Article: Cerebral contusion: a role model for lesion progression.

Kawamata, Tatsuro / Katayama, Yoichi

2007 Volume 161, Page(s) 235–241

Abstract: The early massive edema caused by severe cerebral contusion results in progressive intracranial pressure (ICP) elevation and clinical deterioration within 24-72 h post-trauma. Surgical excision of the necrotic brain tissue represents the only therapy, ... ...

Abstract	The early massive edema caused by severe cerebral contusion results in progressive intracranial pressure (ICP) elevation and clinical deterioration within 24-72 h post-trauma. Surgical excision of the necrotic brain tissue represents the only therapy, which can provide satisfactory control of the elevated ICP and clinical deterioration. In this chapter, we review the results of our clinical studies regarding the pathophysiology of contusion edema and evaluate the effects of surgical treatment, i.e. contusion necrotomy, by analyzing the data from the Japan Neurotrauma Data Bank.
MeSH term(s)	Brain/pathology ; Brain/surgery ; Brain Edema/physiopathology ; Brain Injuries/pathology ; Brain Injuries/surgery ; Capillary Permeability/physiology ; Disease Progression ; Humans ; Magnetic Resonance Imaging ; Necrosis/pathology ; Neurosurgical Procedures ; Osmotic Pressure ; Treatment Outcome
Language	English
Publishing date	2007
Publishing country	Netherlands
Document type	Journal Article ; Review
ISSN	0079-6123
ISSN	0079-6123
DOI	10.1016/S0079-6123(06)61016-9
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Article: [Lateral supracerebellar transtentorial approach for petroclival lesions].

Kawamata, Tatsuro / Katayama, Yoichi

No shinkei geka. Neurological surgery

2006 Volume 34, Issue 6, Page(s) 567–575

MeSH term(s)	Brain/anatomy & histology ; Brain/pathology ; Cerebral Angiography ; Cranial Fossa, Posterior ; Craniotomy ; Humans ; Magnetic Resonance Imaging ; Meningeal Neoplasms/diagnostic imaging ; Meningeal Neoplasms/pathology ; Meningeal Neoplasms/surgery ; Meningioma/diagnostic imaging ; Meningioma/pathology ; Meningioma/surgery ; Neurosurgical Procedures/methods ; Posture ; Tomography, X-Ray Computed
Language	Japanese
Publishing date	2006-06
Publishing country	Japan
Document type	Journal Article
ZDB-ID	197053-7
ISSN	1882-1251 ; 0301-2603
ISSN (online)	1882-1251
ISSN	0301-2603
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Article ; Online: Tissue hyperosmolality and brain edema in cerebral contusion.

Kawamata, Tatsuro / Mori, Tatsuro / Sato, Shoshi / Katayama, Yoichi

Neurosurgical focus

2007 Volume 22, Issue 5, Page(s) E5

Abstract: Severe cerebral contusion is often associated with nonhemorrhagic mass effect that progresses rapidly within 12 to 48 hours posttrauma. The mechanisms underlying such a rapid progression of mass effect cannot be fully explained by classic concepts of ... ...

Abstract	Severe cerebral contusion is often associated with nonhemorrhagic mass effect that progresses rapidly within 12 to 48 hours posttrauma. The mechanisms underlying such a rapid progression of mass effect cannot be fully explained by classic concepts of vasogenic and cytotoxic brain edema. Data from previous clinical trials, including diffusion-weighted magnetic resonance imaging studies, have indicated that cells in the central (core) area of the contusion undergo shrinkage, disintegration, and homogenization, whereas cellular swelling is located predominately in the peripheral (rim) area during this period. The authors hypothesized that high osmolality within the contused brain tissue generates an osmotic potential across the central and peripheral areas or causes blood to accumulate a large amount of water. To elucidate the role of tissue osmolality in contusion edema, they investigated changes in tissue osmolality, specific gravity, and ion concentration in contused brain in both experimental and clinical settings. Their results demonstrated that cerebral contusion induced a rapid increase in tissue osmolality from a baseline level of 311.4 +/- 11.3 to 402.8 +/- 15.1 mOsm at 12 hours posttrauma (p < 0.0001). Specific gravity in tissue significantly decreased from 1.0425 +/- 0.0026 to 1.0308 +/- 0.0028 (p < 0.01), reflecting water accumulation in contused tissue. The total ionic concentration [Na+] + [K+] + [Cl-] did not change significantly at any time point. Inorganic ions do not primarily contribute to this elevation in osmolality, suggesting that the increase in colloid osmotic pressure through the metabolic production of osmoles or the release of idiogenic osmoles can be a main cause of contusion edema.
MeSH term(s)	Animals ; Brain Concussion/complications ; Brain Edema/etiology ; Brain Edema/pathology ; Disease Models, Animal ; Humans ; Nerve Tissue/physiopathology ; Osmolar Concentration ; Rats ; Rats, Wistar ; Time Factors ; Water-Electrolyte Balance/physiology
Language	English
Publishing date	2007-05-15
Publishing country	United States
Document type	Journal Article ; Review
ZDB-ID	2026589-X
ISSN	1092-0684 ; 1092-0684
ISSN (online)	1092-0684
ISSN	1092-0684
DOI	10.3171/foc.2007.22.5.6
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Article ; Online: Lateral supracerebellar transtentorial approach for petroclival meningiomas: operative technique and outcome.

Watanabe, Takao / Katayama, Yoichi / Fukushima, Takao / Kawamata, Tatsuro

Journal of neurosurgery

2011 Volume 115, Issue 1, Page(s) 49–54

Abstract: Object: The retrosigmoid intradural suprameatal approach with the patient in a semisitting position is an effective alternative to transpetrosal approaches for the treatment of petroclival meningiomas. The authors have made a simple modification to the ... ...

Abstract	Object: The retrosigmoid intradural suprameatal approach with the patient in a semisitting position is an effective alternative to transpetrosal approaches for the treatment of petroclival meningiomas. The authors have made a simple modification to the retrosigmoid intradural suprameatal approach by using the lateral oblique position and preferentially dividing the tentorium with limited drilling of the suprameatal bone, which is termed the "lateral supracerebellar transtentorial approach." Methods: Twenty-six patients with petroclival meningiomas surgically treated via the lateral supracerebellar transtentorial approach were analyzed. All tumors had most of their bulk in the posterior fossa with some degree of extension into the middle fossa and/or Meckel cave. The patient is placed in the lateral oblique position, and a standard retrosigmoid craniotomy is performed. The tentorium medial to the trigeminal nerve is incised toward the free edge, which improves exposure to the petroclival region without extensive resection of the suprameatal petrous bone. Results: Gross-total resection was achieved in 11 patients (42%). Ten patients (38%) underwent subtotal resection, and 5 patients (19%) underwent partial resection. There was no incidence of operative death, and the postoperative permanent morbidity rate was 15%. All patients except one did well postoperatively and were independent at the time of their last follow-up examinations. Conclusions: The lateral supracerebellar transtentorial approach provides the simplest and safest access to the petroclival region. It offers an advantageous approach to petroclival meningiomas exclusively located in the posterior fossa with minimal extension into the Meckel cave and middle fossa.
MeSH term(s)	Adolescent ; Adult ; Aged ; Cranial Fossa, Posterior/surgery ; Female ; Humans ; Male ; Meningeal Neoplasms/surgery ; Meningioma/surgery ; Middle Aged ; Neurosurgical Procedures/methods ; Treatment Outcome ; Young Adult
Language	English
Publishing date	2011-07
Publishing country	United States
Document type	Journal Article
ZDB-ID	3089-2
ISSN	1933-0693 ; 0022-3085
ISSN (online)	1933-0693
ISSN	0022-3085
DOI	10.3171/2011.2.JNS101759
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Article: Hyponatremia in patients with traumatic brain injury: incidence, mechanism, and response to sodium supplementation or retention therapy with hydrocortisone.

Moro, Nobuhiro / Katayama, Yoichi / Igarashi, Takahiro / Mori, Tatsuro / Kawamata, Tatsuro / Kojima, Jun

Surgical neurology

2007 Volume 68, Issue 4, Page(s) 387–393

Abstract: Background: Hyponatremia is a frequently observed electrolyte abnormality in patients with central nervous system disease. Several mechanisms, such as SIADH, hypopituitarism, and CSWS, have been proposed with varied incidences among several studies. We ... ...

Abstract	Background: Hyponatremia is a frequently observed electrolyte abnormality in patients with central nervous system disease. Several mechanisms, such as SIADH, hypopituitarism, and CSWS, have been proposed with varied incidences among several studies. We attempted to clarify the incidence and mechanism of hyponatremia for each type of TBI. We also assessed the efficacy of sodium supplementation and retention therapy. For sodium retention therapy, hydrocortisone was administered, expecting its mineralocorticoid effect, when the hyponatremia was associated with excess natriuresis. Methods: Retrospective analysis of 298 patients with TBI between January 2003 and December 2004 was performed. The incidence, background, clinical data, and outcome were evaluated. Results: Of the 298 patients, 50 (16.8%) presented hyponatremia during the time course. Hyponatremia was associated with longer hospital stay (P < .001) and bad outcome (P = .02). Among these 50 patients, 37 recovered from the hyponatremia with simple sodium supplementation. The remaining 13 patients presented massive natriuresis and required additional sodium retention therapy. Hydrocortisone statistically reduced the amount of sodium excretion (P = .002) and returned the serum sodium level to a normal value. Conclusions: A high rate of hyponatremia after TBI was observed. Further studies are required to establish the precise mechanism of hyponatremia after TBI. Clear definition of CSWS is required to avoid confusion of the pathophysiology that causes hyponatremia. Hydrocortisone was useful to prevent excess natriuresis.
MeSH term(s)	Adolescent ; Adult ; Aged ; Aged, 80 and over ; Brain Injuries/complications ; Brain Injuries/drug therapy ; Brain Injuries/metabolism ; Child ; Child, Preschool ; Female ; Glasgow Coma Scale ; Glasgow Outcome Scale ; Humans ; Hydrocortisone/therapeutic use ; Hyponatremia/epidemiology ; Hyponatremia/etiology ; Hyponatremia/metabolism ; Infant ; Infant, Newborn ; Kidney/drug effects ; Kidney/metabolism ; Male ; Middle Aged ; Natriuresis/drug effects ; Retrospective Studies ; Sodium/blood ; Sodium/therapeutic use
Chemical Substances	Sodium (9NEZ333N27) ; Hydrocortisone (WI4X0X7BPJ)
Language	English
Publishing date	2007-10
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	221938-4
ISSN	1879-3339 ; 0090-3019
ISSN (online)	1879-3339
ISSN	0090-3019
DOI	10.1016/j.surneu.2006.11.052
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Article: Prediction of symptomatic cerebral vasospasm in patients with aneurysmal subarachnoid hemorrhage: relationship to cerebral salt wasting syndrome.

Igarashi, Takahiro / Moro, Nobuhiro / Katayama, Yoichi / Mori, Tatsuro / Kojima, Jun / Kawamata, Tatsuro

Neurological research

2007 Volume 29, Issue 8, Page(s) 835–841

Abstract: Objectives: Symptomatic cerebral vasospasm is a major complication in patients with subarachnoid hemorrhage (SAH). Symptomatic cerebral vasospasm has been reported to be related to the patient's blood volume which is influenced by cerebral salt wasting ... ...

Abstract	Objectives: Symptomatic cerebral vasospasm is a major complication in patients with subarachnoid hemorrhage (SAH). Symptomatic cerebral vasospasm has been reported to be related to the patient's blood volume which is influenced by cerebral salt wasting syndrome (CSWS). We undertook a prospective study to assess whether the onset of symptomatic cerebral vasospasm was predictable or not, by observing the phenomena of CSWS (natriuresis and osmotic diuresis). Methods: Sixty-seven consecutive aneurysmal SAH patients were analysed. After surgery, all patients underwent hypervolemic therapy in order to keep central venous pressure (CVP) within 8-12 cmH(2)O, serum sodium level above 140 mEq/l and a positive water balance. Patients were classified into two groups: those without symptomatic cerebral vasospasm (n=55) and those with symptomatic cerebral vasospasm (n=12). To estimate natriuresis and osmotic diuresis, sodium in/out, water in/out, CVP and other parameters were measured and compared between the two groups. Results: One day before symptomatic cerebral vasospasm, three factors reached statistical difference in the group that experienced symptomatic cerebral vasospasm: sodium balance, urine volume and water balance. On the day of symptomatic cerebral vasospasm, two factors reached statistical difference: sodium excretion and urine volume. No factor was significantly different 2 days before symptomatic cerebral vasospasm. Discussion: Symptomatic cerebral vasospasm has a strong relationship with CSWS. Negative sodium and water balance and increased urine volume indicate a predictor of symptomatic cerebral vasospasm. To predict symptomatic cerebral vasospasm, strict observations are required, because CSWS and symptomatic cerebral vasospasm which follows, develop rapidly.
MeSH term(s)	Adult ; Aged ; Analysis of Variance ; Blood Cell Count/methods ; Blood Pressure/physiology ; Chi-Square Distribution ; Female ; Fluid Therapy/methods ; Humans ; Male ; Middle Aged ; Natriuresis/physiology ; Neurologic Examination ; Osmotic Pressure ; Postoperative Complications ; Predictive Value of Tests ; Prospective Studies ; Retrospective Studies ; Subarachnoid Hemorrhage/complications ; Subarachnoid Hemorrhage/surgery ; Time Factors ; Vasospasm, Intracranial/diagnosis ; Vasospasm, Intracranial/etiology ; Water-Electrolyte Balance/physiology
Language	English
Publishing date	2007-12
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	424428-x
ISSN	1743-1328 ; 0161-6412
ISSN (online)	1743-1328
ISSN	0161-6412
DOI	10.1179/016164107X228624
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Article ; Online: Prophylactic management of excessive natriuresis with hydrocortisone for efficient hypervolemic therapy after subarachnoid hemorrhage.

Moro, Nobuhiro / Katayama, Yoichi / Kojima, Jun / Mori, Tatsuro / Kawamata, Tatsuro

Stroke

2003 Volume 34, Issue 12, Page(s) 2807–2811

Abstract: Background and purpose: Hyponatremia caused by excessive natriuresis is common in patients with aneurysmal subarachnoid hemorrhage (SAH). Natriuresis decreases the total blood volume through osmotic diuresis and increases the risk of symptomatic ... ...

Abstract	Background and purpose: Hyponatremia caused by excessive natriuresis is common in patients with aneurysmal subarachnoid hemorrhage (SAH). Natriuresis decreases the total blood volume through osmotic diuresis and increases the risk of symptomatic cerebral vasospasm. In such patients, hypervolemic therapy is difficult to achieve without causing hyponatremia because sodium replacement provokes further natriuresis and osmotic diuresis. We examined the effects of hydrocortisone, which promotes sodium retention, in patients with SAH. Methods: Twenty-eight SAH patients were randomized into 2 groups after direct surgery: group 1 patients without hydrocortisone treatment (n=14) and group 2 patients with hydrocortisone treatment (1200 mg/d for 10 days; n=14). Both groups underwent hypervolemic therapy by aggressive sodium and water replacement. The goal of the hypervolemic therapy was to maintain the serum sodium level >140 mEq/L and the central venous pressure (CVP) within 8 to 12 cm H2O. Results: Group 2 demonstrated a lower sodium excretion (P<0.05) and higher serum sodium level (P<0.05) compared with group 1. Hyponatremia developed in 6 patients (43%) in group 1 and 0 patients in group 2 (P<0.05). Group 2 also demonstrated a lower urine volume, lower infusion volume (P<0.05) required for hypervolemic therapy, and higher CVP (P<0.05). Failure to maintain CVP was observed in 12 patients (86%) in group 1 and 3 patients (21%) in group 2 (P<0.05). Hydrocortisone caused no serious side effects. Conclusions: Hydrocortisone clearly attenuates excessive natriuresis. Prophylactic hydrocortisone administration appears to have a therapeutic value in inducing hypervolemia efficiently after SAH.
MeSH term(s)	Adult ; Aged ; Blood Glucose/analysis ; Blood Glucose/drug effects ; Blood Proteins/analysis ; Blood Volume/drug effects ; Female ; Glasgow Outcome Scale ; Humans ; Hydrocortisone/adverse effects ; Hydrocortisone/therapeutic use ; Hyponatremia/complications ; Hyponatremia/drug therapy ; Hyponatremia/prevention & control ; Male ; Middle Aged ; Natriuresis/drug effects ; Osmotic Pressure/drug effects ; Potassium/blood ; Potassium/urine ; Sodium/blood ; Sodium/urine ; Sodium, Dietary ; Subarachnoid Hemorrhage/complications ; Subarachnoid Hemorrhage/surgery ; Treatment Outcome ; Vasospasm, Intracranial/prevention & control ; Water-Electrolyte Balance/drug effects
Chemical Substances	Blood Glucose ; Blood Proteins ; Sodium, Dietary ; Sodium (9NEZ333N27) ; Potassium (RWP5GA015D) ; Hydrocortisone (WI4X0X7BPJ)
Language	English
Publishing date	2003-12
Publishing country	United States
Document type	Clinical Trial ; Journal Article ; Randomized Controlled Trial
ZDB-ID	80381-9
ISSN	1524-4628 ; 0039-2499 ; 0749-7954
ISSN (online)	1524-4628
ISSN	0039-2499 ; 0749-7954
DOI	10.1161/01.STR.0000103744.05430.99
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Article: [A case of nasal dermal sinus-cyst (NDSC) with intracranial extension].

Takada, Yoshiyuki / Sumi, Koichiro / Koshinaga, Morimichi / Kawamata, Tatsuro / Isago, Tsukasa / Sasaki, Kenji / Katayama, Yoichi

No shinkei geka. Neurological surgery

2007 Volume 35, Issue 1, Page(s) 71–76

Abstract: Nasal dermal sinus-cyst (NDSC) is a rare abnormality consisting of a dermal sinus opening at the nasal skin and dermoid cyst localized in the frontobasal area. A 2-year-old boy was admitted to our hospital due to swelling of the fronto-nasal regions with ...

Abstract	Nasal dermal sinus-cyst (NDSC) is a rare abnormality consisting of a dermal sinus opening at the nasal skin and dermoid cyst localized in the frontobasal area. A 2-year-old boy was admitted to our hospital due to swelling of the fronto-nasal regions with pus running from an orifice situated in the nasal skin. Bone-image CT and 3D-CT revealed bone defects within the frontal skull base. MRI demonstrated that a dermoid cyst centered in a bone defect was in contact with the dura of the frontobasal area, and a dermal sinus extending to the frontonasal skin could also be detected. Surgical resection was performed by frontobasal craniotomy. The dermal sinus was followed subcutaneously into the orifice of the nasal skin. A small skin incision was made and the sinus was then totally removed. The authors describe in detail this case of NDSC which extended to the intracranium, and review the literature regarding this abnormality.
MeSH term(s)	Child, Preschool ; Craniotomy/methods ; Dermoid Cyst/diagnosis ; Dermoid Cyst/pathology ; Dermoid Cyst/surgery ; Frontal Bone/abnormalities ; Humans ; Imaging, Three-Dimensional ; Magnetic Resonance Imaging ; Male ; Neoplasm Invasiveness ; Paranasal Sinus Neoplasms/diagnosis ; Paranasal Sinus Neoplasms/pathology ; Paranasal Sinus Neoplasms/surgery ; Skull Neoplasms/pathology ; Skull Neoplasms/surgery ; Tomography, X-Ray Computed
Language	Japanese
Publishing date	2007-01
Publishing country	Japan
Document type	Case Reports ; English Abstract ; Journal Article
ZDB-ID	197053-7
ISSN	1882-1251 ; 0301-2603
ISSN (online)	1882-1251
ISSN	0301-2603
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Article: Jugular bulb venous thrombosis caused by mild head injury: a case report.

Shigemori, Yutaka / Koshinaga, Morimichi / Suma, Takeshi / Nakamura, Shin / Murata, Yoshihiro / Kawamata, Tatsuro / Katayama, Yoichi

Surgical neurology

2007 Volume 68, Issue 6, Page(s) 660–664

Abstract: Background: We present here the first report of a jugular bulb venous thrombosis after mild head injury, which lacked either a skull fracture or abnormal findings on CT scan.: Case description: An 8-year-old boy was hit on the back of the head and ... ...

Abstract	Background: We present here the first report of a jugular bulb venous thrombosis after mild head injury, which lacked either a skull fracture or abnormal findings on CT scan. Case description: An 8-year-old boy was hit on the back of the head and experienced headache and vomiting beginning the next morning. A CT scan and cranial x-ray examination failed to reveal any abnormal findings. The patient was treated conservatively; however, his headache and vomiting persisted. At 13 days after the injury, he began to show double vision due to left VIth nerve palsy and bilateral papilloedemas, suggesting an increased ICP. Although repeated CT scan failed to detect abnormal findings in both the supra- and infra-tentorial regions, MRI clearly visualized a thrombus which was situated within the right jugular bulb. Furthermore, MRV demonstrated disruption of venous flow at the jugular bulb. The patient was administered heparin continuously. His symptoms improved and the CSF pressure on lumbar puncture returned to a normal level at 20 days after admission. Magnetic resonance imaging showed resolution of the clot, and MRV appeared to demonstrate partial recanalization simultaneously. The patient was discharged without any neurologic deficits. The clot in the jugular bulb disappeared completely after 4 months, and he could be followed up for 1 year. Conclusion: This case underscores the fact that MRI may represent the exclusive screening examination in cases of sinus thrombosis when it occurs within the jugular bulb, as CT scan fails to reveal any findings suggestive of venous thrombosis.
MeSH term(s)	Child ; Craniocerebral Trauma/complications ; Craniocerebral Trauma/diagnostic imaging ; Craniocerebral Trauma/pathology ; Humans ; Jugular Veins/diagnostic imaging ; Jugular Veins/pathology ; Magnetic Resonance Imaging ; Male ; Phlebography ; Tomography, X-Ray Computed ; Trauma Severity Indices ; Venous Thrombosis/diagnostic imaging ; Venous Thrombosis/etiology ; Venous Thrombosis/pathology
Language	English
Publishing date	2007-09-06
Publishing country	United States
Document type	Case Reports ; Journal Article
ZDB-ID	221938-4
ISSN	1879-3339 ; 0090-3019
ISSN (online)	1879-3339
ISSN	0090-3019
DOI	10.1016/j.surneu.2006.11.037
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Article: Age-associated increases in poor outcomes after traumatic brain injury: a report from the Japan Neurotrauma Data Bank.

Tokutomi, Takashi / Miyagi, Tomoya / Ogawa, Takeki / Ono, Jun-ichi / Kawamata, Tatsuro / Sakamoto, Tetsuya / Shigemori, Minoru / Nakamura, Norio

Journal of neurotrauma

2008 Volume 25, Issue 12, Page(s) 1407–1414

Abstract: Age is an important factor influencing outcome after severe traumatic brain injury (TBI). In general, the older the victim, the higher the probability of a poor outcome. To investigate the mechanism underlying the link between age and outcome, the data ... ...

Abstract	Age is an important factor influencing outcome after severe traumatic brain injury (TBI). In general, the older the victim, the higher the probability of a poor outcome. To investigate the mechanism underlying the link between age and outcome, the data for 797 patients enrolled in the Japan Neurotrauma Data Bank (JNTDB), aged 6 years or older, with Glasgow Coma Scale (GCS) scores of 8 or less on admission or deterioration to that level within 48 h of impact were analyzed. Thirty-eight percent of the patients were between the ages of 40 and 69 years, and 24% of the patients were older than 69 years. Older patients had higher rates of mortality and lower rates of favorable outcome. The frequency of mass lesions which were associated with poorer outcomes significantly increased with age, but regardless of the intracranial lesion type, older patients had poorer outcomes. The GCS score and the occurrence of systemic complications did not differ significantly according to age. Multiple systemic injury was less frequent in older patients. The varied occurrence of intracranial lesion types according to age is likely caused by the disparity between the young and aged brain in the progression of secondary brain injury. Alteration in the pathophysiological response, which is related to the development of secondary brain injury in the aging brain, probably contributes to more severe and irreversible brain damage in older patients, and is thus associated with poor outcomes.
MeSH term(s)	Adolescent ; Adult ; Age Factors ; Aged ; Aged, 80 and over ; Brain Injuries/diagnosis ; Brain Injuries/mortality ; Brain Injuries/therapy ; Child ; Databases, Factual ; Female ; Glasgow Coma Scale ; Humans ; Japan ; Male ; Middle Aged ; Recovery of Function ; Retrospective Studies ; Risk Factors ; Treatment Outcome ; Young Adult
Language	English
Publishing date	2008-12
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	645092-1
ISSN	1557-9042 ; 0897-7151
ISSN (online)	1557-9042
ISSN	0897-7151
DOI	10.1089/neu.2008.0577
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