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  1. Article: Unveiling an oral hemangiolymphangioma.

    Ferreira-Santos, Rívea Inês / Santos, Kamilla Alves / Scherma, Alexandre Prado / León, Jorge Esquiche / Kaminagakura, Estela

    Autopsy & case reports

    2023  Volume 13, Page(s) e2023435

    Abstract: Hemangiolymphangioma is a very rare vascular malformation that develops as a combination of dilated venous and lymphatic vessels. We describe an unusual case of hemangiolymphangioma of the tongue affecting an adult man who complained of an uncomfortable, ...

    Abstract Hemangiolymphangioma is a very rare vascular malformation that develops as a combination of dilated venous and lymphatic vessels. We describe an unusual case of hemangiolymphangioma of the tongue affecting an adult man who complained of an uncomfortable, slowly progressing exophytic irregular dark red-violaceous nodular mass on his tongue that impaired speech and swallowing for two weeks. The clinical differential diagnoses were Kaposi's sarcoma and a COVID-19-related lesion. A complete blood count and serology for HIV-1 and 2 and RT-PCR for COVID-19 were requested and results were negative. An incisional biopsy was performed. Microscopically, the lesion exhibited several dilated vessels lined by normal-appearing endothelial cells, some filled with prominent intravascular erythrocytes and others containing proteinaceous eosinophilic material resembling lymphatic vessels, in close association with hyperkeratosis, papillomatosis, and acanthosis. From immunohistochemical analysis, most vessels were found to be CD34 positive, some highlighted by α-SMA, whereas D2-40 was focal. Positive staining for some lymphatic and blood vessel markers,
    Language English
    Publishing date 2023-05-24
    Publishing country Brazil
    Document type Case Reports
    ZDB-ID 2815488-5
    ISSN 2236-1960
    ISSN 2236-1960
    DOI 10.4322/acr.2023.435
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Hidden colon adenocarcinoma diagnosed from mouth metastasis: case report and literature review.

    de Almeida Lança, Maria Leticia / Carvalho, Yasmin Rodarte / Almeida, Janete Dias / Kaminagakura, Estela

    World journal of surgical oncology

    2023  Volume 21, Issue 1, Page(s) 88

    Abstract: Background: We report an unusual case of metastatic colon adenocarcinoma to the maxilla as an initial clinical sign of the disease, this being the second case reported in the palate. In addition, we show an extensive review of the literature, with ... ...

    Abstract Background: We report an unusual case of metastatic colon adenocarcinoma to the maxilla as an initial clinical sign of the disease, this being the second case reported in the palate. In addition, we show an extensive review of the literature, with clinical cases of adenocarcinoma with metastasis to the mouth.
    Case presentation: An 80-year-old man complained of "swelling on the palate" with a 3-week evolution time. He reported suffering from constipation and high blood pressure. The intraoral examination revealed a pedunculated, red, and painless nodule on the maxillary gingiva. Under the diagnostic hypotheses of squamous cell carcinoma and malignant neoplasm of the salivary gland, an incisional biopsy was performed. Microscopically, the columnar epithelium was observed forming papillary areas, neoplastic cells with prominent nucleoli, hyperchromatic nuclei, atypical mitotic figures, and mucous cells, being positive for CK 20, suggesting the provisional diagnosis of metastatic adenocarcinoma, probably of gastrointestinal origin. The patient was submitted to endoscopy and colonoscopy exams, and a lesion in the sigmoid region of the colon was observed. After a colon biopsy, a moderately differentiated adenocarcinoma was confirmed, establishing the final diagnosis of metastatic neoplasia of colon adenocarcinoma to the oral lesion. The literature review revealed 45 clinical cases of colon adenocarcinoma with metastasis to the oral cavity. To the best of our knowledge, it is the second case on the palate.
    Conclusions: Colon adenocarcinoma with metastasis to the oral cavity is rare but should be included in the differential diagnosis of neoplasms of the oral cavity, even when there are no known primary tumors in some cases, and this may be the first indication of the presence of a tumor.
    MeSH term(s) Male ; Humans ; Aged, 80 and over ; Colonic Neoplasms ; Adenocarcinoma/pathology ; Colonoscopy ; Mouth/pathology
    Language English
    Publishing date 2023-03-10
    Publishing country England
    Document type Review ; Case Reports ; Journal Article
    ZDB-ID 2118383-1
    ISSN 1477-7819 ; 1477-7819
    ISSN (online) 1477-7819
    ISSN 1477-7819
    DOI 10.1186/s12957-023-02978-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Stimulator of Interferon Genes Pathway Activation through the Controlled Release of STINGel Mediates Analgesia and Anti-Cancer Effects in Oral Squamous Cell Carcinoma.

    Dong, Minh Phuong / Dharmaraj, Neeraja / Kaminagakura, Estela / Xue, Jianfei / Leach, David G / Hartgerink, Jeffrey D / Zhang, Michael / Hanks, Hana-Joy / Ye, Yi / Aouizerat, Bradley E / Vining, Kyle / Thomas, Carissa M / Dovat, Sinisa / Young, Simon / Viet, Chi T

    Biomedicines

    2024  Volume 12, Issue 4

    Abstract: Oral squamous cell carcinoma (OSCC) presents significant treatment challenges due to its poor survival and intense pain at the primary cancer site. Cancer pain is debilitating, contributes to diminished quality of life, and causes opioid tolerance. The ... ...

    Abstract Oral squamous cell carcinoma (OSCC) presents significant treatment challenges due to its poor survival and intense pain at the primary cancer site. Cancer pain is debilitating, contributes to diminished quality of life, and causes opioid tolerance. The stimulator of interferon genes (STING) agonism has been investigated as an anti-cancer strategy. We have developed STINGel, an extended-release formulation that prolongs the availability of STING agonists, which has demonstrated an enhanced anti-tumor effect in OSCC compared to STING agonist injection. This study investigates the impact of intra-tumoral STINGel on OSCC-induced pain using two separate OSCC models and nociceptive behavioral assays. Intra-tumoral STINGel significantly reduced mechanical allodynia in the orofacial cancer model and alleviated thermal and mechanical hyperalgesia in the hind paw model. To determine the cellular signaling cascade contributing to the antinociceptive effect, we performed an in-depth analysis of immune cell populations via single-cell RNA-seq. We demonstrated an increase in M1-like macrophages and N1-like neutrophils after STINGel treatment. The identified regulatory pathways controlled immune response activation, myeloid cell differentiation, and cytoplasmic translation. Functional pathway analysis demonstrated the suppression of translation at neuron synapses and the negative regulation of neuron projection development in M2-like macrophages after STINGel treatment. Importantly, STINGel treatment upregulated TGF-β pathway signaling between various cell populations and peripheral nervous system (PNS) macrophages and enhanced TGF-β signaling within the PNS itself. Overall, this study sheds light on the mechanisms underlying STINGel-mediated antinociception and anti-tumorigenic impact.
    Language English
    Publishing date 2024-04-21
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2720867-9
    ISSN 2227-9059
    ISSN 2227-9059
    DOI 10.3390/biomedicines12040920
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Evaluation of the Effects of Radiation Therapy on Muscle Contractibility and Skin Healing: An Experimental Study of the Cancer Treatment Implications.

    Avelino, Sarah O M / Neves, Rafael M / Sobral-Silva, Leonardo A / Tango, Rubens N / Federico, Claudio A / Vegian, Mariana R C / de Almeida-Silva, Luis Augusto / Kaminagakura, Estela / Amorim, José Benedito O / Vasconcellos, Luana M R

    Life (Basel, Switzerland)

    2023  Volume 13, Issue 9

    Abstract: Background: Radiotherapy can affect healthy cells, resulting in side effects. This study aimed to assess the impact of radiotherapy on soft tissue in surgical wounds in rats.: Methods: The animals were divided into four groups: control (S) group ... ...

    Abstract Background: Radiotherapy can affect healthy cells, resulting in side effects. This study aimed to assess the impact of radiotherapy on soft tissue in surgical wounds in rats.
    Methods: The animals were divided into four groups: control (S) group without irradiation, immediate irradiation (S-IIr) group receiving irradiation right after surgery, late irradiation (S-LIr) group receiving irradiation four weeks after surgery, and early irradiation (Ir-S) group receiving irradiation before surgery. The irradiated groups underwent two fractional stages of 15 Gy. Muscle contractibility (EMG) was evaluated at two different time points, and after 2 and 7 weeks, the animals were euthanized for histological analysis of the muscles and skin.
    Results: There was no significant difference between the EMG1 and EMG2 values of the S and S-LIr groups, but both S-IIr and Ir-S groups exhibited a statistically significant difference. The S group demonstrated a larger diameter of muscle fiber compared to other groups, showing a significant difference. In terms of skin analysis, the S-IIr group had the least inflammatory infiltrate and the highest amount of red fibers, differing significantly from the other groups.
    Conclusions: Regardless of the duration, radiotherapy was found to have effects on the surrounding soft tissues, as concluded by this study.
    Language English
    Publishing date 2023-08-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662250-6
    ISSN 2075-1729
    ISSN 2075-1729
    DOI 10.3390/life13091838
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Central Odontogenic Fibroma with the Presence of Large Fibroblasts of Varying Morphology.

    Costa, Victor / Anbinder, Ana Lia / Herrera, Fernanda / Rodrigues, Nayara / Cavalcante, Ana Sueli Rodrigues / Kaminagakura, Estela

    Head and neck pathology

    2020  Volume 15, Issue 2, Page(s) 663–667

    Abstract: A patient with an odontogenic fibroma (OF) with the presence of fibroblasts of varying morphology is presented, and the main microscopic differential diagnosis is discussed. Case report: a 51-year-old man complained of a swelling in the anterior region ... ...

    Abstract A patient with an odontogenic fibroma (OF) with the presence of fibroblasts of varying morphology is presented, and the main microscopic differential diagnosis is discussed. Case report: a 51-year-old man complained of a swelling in the anterior region of the mandible. The panoramic radiograph showed a radiolucent, well-defined multilocular image, with displacement of the roots of the left mandibular incisors and canine. A cone beam computed tomography examination revealed a hypodense image, with delicate bone spicules inside, divergence of the tooth roots and destruction of the buccal cortical bone. Under the differential diagnosis of a desmoplastic ameloblastoma or a squamous odontogenic tumor, an incisional biopsy was made. Microscopically, deeply collagenized tissue with scarce odontogenic epithelium islands, large fibroblasts of varying morphology and calcified material was observed. A diagnosis of OF was made. Surgical removal was carried out, and the specimen was examined. Identical aspects were found, and the immunohistochemical reaction for pan-cytokeratin was carried out to identify the odontogenic epithelial cells. The definitive diagnosis of OF was confirmed, and we emphasize the importance of the correlation of all characteristics for a definitive diagnosis.
    MeSH term(s) Fibroblasts/pathology ; Fibroma/pathology ; Humans ; Male ; Mandible/pathology ; Middle Aged ; Odontogenic Tumors/pathology
    Language English
    Publishing date 2020-08-31
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 2407834-7
    ISSN 1936-0568 ; 1936-055X
    ISSN (online) 1936-0568
    ISSN 1936-055X
    DOI 10.1007/s12105-020-01207-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: New Insights into the Impact of Human Papillomavirus on Oral Cancer in Young Patients: Proteomic Approach Reveals a Novel Role for S100A8.

    Miranda-Galvis, Marisol / Carneiro Soares, Carolina / Moretto Carnielli, Carolina / Ramalho Buttura, Jaqueline / Sales de Sá, Raisa / Kaminagakura, Estela / Marchi, Fabio Albuquerque / Paes Leme, Adriana Franco / Lópes Pinto, Clóvis A / Santos-Silva, Alan Roger / Moraes Castilho, Rogerio / Kowalski, Luiz Paulo / Squarize, Cristiane Helena

    Cells

    2023  Volume 12, Issue 9

    Abstract: Human papillomavirus (HPV) infection has recently been linked to a subset of cancers affecting the oral cavity. However, the molecular mechanisms underlying HPV-driven oral squamous cell carcinoma (OSCC) onset and progression are poorly understood.: ... ...

    Abstract Human papillomavirus (HPV) infection has recently been linked to a subset of cancers affecting the oral cavity. However, the molecular mechanisms underlying HPV-driven oral squamous cell carcinoma (OSCC) onset and progression are poorly understood.
    Methods: We performed MS-based proteomics profiling based on HPV status in OSCC in young patients, following biological characterization and cell assays to explore the proteome functional landscape.
    Results: Thirty-nine proteins are differentially abundant between HPV (+) and HPV (-) OSCC. Among them, COPS3, DYHC1, and S100A8 are unfavorable for tumor recurrence and survival, in contrast to A2M and Serpine1, low levels of which show an association with better DFS. Remarkably, S100A8 is considered an independent prognostic factor for lower survival rates, and at high levels, it alters tumor-associated immune profiling, showing a lower proportion of M1 macrophages and dendritic cells. HPV (+) OSCC also displayed the pathogen-associated patterns receptor that, when activated, triggered the S100A8 and NFκB inflammatory responses.
    Conclusion: HPV (+) OSCC has a peculiar microenvironment pattern distinctive from HPV (-), involving the expression of pathogen-associated pattern receptors, S100A8 overexpression, and NFκB activation and responses, which has important consequences in prognosis and may guide therapeutic decisions.
    MeSH term(s) Humans ; Carcinoma, Squamous Cell/pathology ; Head and Neck Neoplasms/complications ; Human Papillomavirus Viruses ; Mouth Neoplasms/pathology ; Neoplasm Recurrence, Local ; Papillomavirus Infections/pathology ; Proteomics ; Squamous Cell Carcinoma of Head and Neck/complications ; Tumor Microenvironment
    Chemical Substances S100A8 protein, human
    Language English
    Publishing date 2023-05-05
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells12091323
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  7. Article ; Online: Oral hairy leukoplakia in a child using a corticosteroid nasal spray.

    Costa, Fernanda Herrera / Costa, Victor / León, Jorge Esquiche / Anbinder, Ana Lia / Ribeiro-Silva, Alfredo / Kaminagakura, Estela

    Pediatric dermatology

    2020  Volume 37, Issue 4, Page(s) 721–723

    Abstract: We report a case of atypical oral hairy leukoplakia (OHL) in a 9-year-old immunocompetent girl treated with fluticasone propionate nasal spray for allergic rhinitis. The OHL in childhood is uncommon and should be included in a differential diagnosis of ... ...

    Abstract We report a case of atypical oral hairy leukoplakia (OHL) in a 9-year-old immunocompetent girl treated with fluticasone propionate nasal spray for allergic rhinitis. The OHL in childhood is uncommon and should be included in a differential diagnosis of white lesions in the oral mucosa.
    MeSH term(s) Adrenal Cortex Hormones ; Child ; Female ; Fluticasone/adverse effects ; Humans ; Leukoplakia, Hairy ; Leukoplakia, Oral ; Mouth Mucosa ; Nasal Sprays
    Chemical Substances Adrenal Cortex Hormones ; Nasal Sprays ; Fluticasone (CUT2W21N7U)
    Language English
    Publishing date 2020-05-05
    Publishing country United States
    Document type Case Reports
    ZDB-ID 605539-4
    ISSN 1525-1470 ; 0736-8046
    ISSN (online) 1525-1470
    ISSN 0736-8046
    DOI 10.1111/pde.14194
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Melkersson Rosenthal syndrome: a histopathologic mystery and dermatologic challenge.

    Kaminagakura, Estela / Jorge, Jacks

    Journal of cutaneous pathology

    2011  Volume 38, Issue 2, Page(s) 241–245

    Abstract: Melkersson Rosenthal syndrome (MRS) is rare disease of unknown etiology characterized by orofacial edema, facial nerve palsy and fissured tongue. Microscopically, it shows epithelioid non-caseous granulomas; however, edema and perivascular lymphocytic ... ...

    Abstract Melkersson Rosenthal syndrome (MRS) is rare disease of unknown etiology characterized by orofacial edema, facial nerve palsy and fissured tongue. Microscopically, it shows epithelioid non-caseous granulomas; however, edema and perivascular lymphocytic infiltrates have been described. Two different clinical forms of MRS are presented in this report. In the complete form (Case 1), the main histopathologic finding was a non-necrotizing granulomatous inflammation with 56% of the total number of cells composed of B cells (CD 20(+) ) principally located in the granuloma's center and 33% being T cells predominating in the surrounding area, of which 48% were CD 4(+) and 16% were CD 8(+) lymphocytes. In the monosymptomatic form (Case 2), the inflammatory cells were dispersed into the connective tissue without granulomatous formation. B cells were scanty, and 78% of the cells were CD 45(+) T cells, with 46% and 34%, CD 8(+) and CD 4(+) phenotype, respectively. These cases showed different clinical, histopathological and immunohistochemical forms of MRS, suggesting different host immune responses.
    MeSH term(s) Female ; Humans ; Immunohistochemistry ; Melkersson-Rosenthal Syndrome/immunology ; Melkersson-Rosenthal Syndrome/pathology ; Middle Aged ; Young Adult
    Language English
    Publishing date 2011-02
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 187078-6
    ISSN 1600-0560 ; 0303-6987
    ISSN (online) 1600-0560
    ISSN 0303-6987
    DOI 10.1111/j.1600-0560.2009.01446.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: The role of Osterix protein in the pathogenesis of peripheral ossifying fibroma.

    El Achkar, Vivian Narana Ribeiro / Medeiros, Raphaella da Silveira / Longue, Fernanda Gargano / Anbinder, Ana Lia / Kaminagakura, Estela

    Brazilian oral research

    2017  Volume 31, Page(s) e53

    Abstract: Peripheral ossifying fibroma (POF) is a reactive lesion of oral tissues, associated with local factors such as trauma or presence of dental biofilm. POF treatment consists of curettage of the lesion combined with root scaling of adjacent teeth and/or ... ...

    Abstract Peripheral ossifying fibroma (POF) is a reactive lesion of oral tissues, associated with local factors such as trauma or presence of dental biofilm. POF treatment consists of curettage of the lesion combined with root scaling of adjacent teeth and/or removal of other sources of irritants. This study aimed to analyze the clinical and pathological features of POF and to investigate the immunoexpression of Osterix and STRO-1 proteins. Data such as age, gender, and size were obtained from 30 cases of POF. Microscopic features were assessed by conventional light microscopy using hematoxylin-eosin staining and immunohistochemical markers, and by polarized light microscopy using Picrosirius red staining. The age range was 11-70 years and 70% of the patients were female. Moreover, the size of POF varied from 0.2 to 5.0 cm; in 43.33% of the cases, the mineralized content consisted exclusively of bony trabeculae. The immunohistochemical analysis showed nuclear staining for Osterix in 63% and for STRO-1 in 20% of the cases. Mature collagen fibers were observed in mineralized tissue in 76.67% of the cases. The clinical and microscopic features observed were in agreement with those described in the literature. Osterix was overexpressed, while STRO-1 was poorly expressed. Osterix was expressed particularly in cells entrapped in and around mineralized tissue, indicating the presence of a stimulus that triggers the differentiation of these cells into osteoblasts or cementoblasts, i.e., cells that produce mineralized tissue. Based on our results, Osterix may play a role in the pathogenesis of POF.
    MeSH term(s) Adolescent ; Adult ; Aged ; Antigens, Surface/analysis ; Antigens, Surface/physiology ; Bone Neoplasms/pathology ; Cell Differentiation ; Child ; Collagen/analysis ; Female ; Fibroma, Ossifying/pathology ; Gingiva/pathology ; Humans ; Immunohistochemistry ; Male ; Microscopy, Polarization ; Middle Aged ; Osteoblasts/pathology ; Sp7 Transcription Factor ; Transcription Factors/analysis ; Transcription Factors/physiology ; Young Adult
    Chemical Substances Antigens, Surface ; STRO-1 antigen, human ; Sp7 Transcription Factor ; SP7 protein, human ; Transcription Factors ; Collagen (9007-34-5)
    Language English
    Publishing date 2017-07-03
    Publishing country Brazil
    Document type Journal Article
    ZDB-ID 2179332-3
    ISSN 1807-3107 ; 1806-8324 ; 1517-7491
    ISSN (online) 1807-3107
    ISSN 1806-8324 ; 1517-7491
    DOI 10.1590/1807-3107BOR-2017.vol31.0053
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Oral syphilis: report of three cases and characterization of the inflammatory cells.

    Strieder, Luciana Rocha / León, Jorge Esquiche / Carvalho, Yasmin Rodarte / Kaminagakura, Estela

    Annals of diagnostic pathology

    2015  Volume 19, Issue 2, Page(s) 76–80

    Abstract: Syphilis is a sexually transmitted infectious disease caused by Treponema pallidum. This study reports 3 cases of syphilis and highlights the importance of identifying oral lesions for its final diagnosis. Case 1: a 48-year-old male patient presented ... ...

    Abstract Syphilis is a sexually transmitted infectious disease caused by Treponema pallidum. This study reports 3 cases of syphilis and highlights the importance of identifying oral lesions for its final diagnosis. Case 1: a 48-year-old male patient presented with a bleeding ulcer in the lower lip. Overall clinical examination revealed patchy alopecia and skin target lesions. Case 2: a 61-year-old male patient presented with white spots on the lateral tongue and nodules on the dorsum of the tongue. Overall clinical examination showed erythematous target lesions on the abdomen, forearm, palms of the hand, and soles of the feet. Case 3: a 17-year-old male patient presented with an ulcerated lesion on the tongue and lymph node involvement. The following serologic tests were requested: Venereal Disease Research Laboratory, fluorescent treponemal antibody-absorption, anti-HIV-1 and anti-HIV-2, and anti-hepatitis C virus. An incisional biopsy revealed epithelial hyperplasia associated with intense and diffuse mononuclear inflammatory cell infiltration consisting mainly of plasma cells, in a perivascular and perineural distribution. The final diagnosis in the 3 patients was syphilis. Treatment consisted of 1 weekly dose of penicillin (2.4 million units, intramuscular) for 2 or 3 weeks. Immunohistochemical reactions for XIIIa, CD3, CD20, CD68, CD163, S100, CD1a, CD11c, CD83, CD138, and CD208 were performed. Clinicians should be familiarized with oral syphilis lesions in order to be able to diagnose this emerging infectious disease of variable clinical presentation.
    MeSH term(s) Adolescent ; Chancre/microbiology ; Chancre/pathology ; Humans ; Male ; Middle Aged ; Mouth/microbiology ; Mouth/pathology ; Mouth Diseases/microbiology ; Mouth Diseases/pathology ; Syphilis/microbiology ; Syphilis/pathology ; Treponema pallidum/isolation & purification
    Language English
    Publishing date 2015-04
    Publishing country United States
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1440011-x
    ISSN 1532-8198 ; 1092-9134
    ISSN (online) 1532-8198
    ISSN 1092-9134
    DOI 10.1016/j.anndiagpath.2015.01.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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