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  1. Article ; Online: A Novel Framework for the Next Generation of Precision Oncology Targets.

    Chen, Christopher T / Ford, James M

    JAMA oncology

    2022  Volume 8, Issue 7, Page(s) 974–976

    MeSH term(s) High-Throughput Nucleotide Sequencing ; Humans ; Medical Oncology ; Neoplasms/drug therapy ; Precision Medicine
    Language English
    Publishing date 2022-05-19
    Publishing country United States
    Document type Journal Article
    ISSN 2374-2445
    ISSN (online) 2374-2445
    DOI 10.1001/jamaoncol.2022.0760
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Toward Precision Perioperative Therapy in GI Malignancies.

    Glover, Michael J / Bien, Jeffrey / Chen, Christopher T

    JCO precision oncology

    2023  Volume 7, Page(s) e2200381

    Abstract: Purpose: The term precision oncology typically refers to molecularly guided therapies against cancer. Less appreciated but also critically important is molecular identification of patients with resectable disease who are most likely to benefit from ... ...

    Abstract Purpose: The term precision oncology typically refers to molecularly guided therapies against cancer. Less appreciated but also critically important is molecular identification of patients with resectable disease who are most likely to benefit from perioperative drugs, and tailored selection of such drugs. We call this idea precision perioperative therapy. Over the past several years, use of precision perioperative approaches for patients with localized GI cancers has expanded in clinical trials and practice. Here, we summarize the status of the field and highlight areas of future innovation.
    Methods: Using PubMed, we reviewed articles published from 2017 to 2023 in English. We used search terms "adjuvant," "perioperative," "neoadjuvant," and "precision medicine" for various types of GI malignancies. Information about ongoing clinical trials was accessed through ClinicalTrials.gov, accessed January 2023.
    Results: Paradigms such as minimal residual disease detection via circulating tumor DNA and perioperative immunotherapy in lieu of chemotherapy for mismatch repair-deficient disease may lead to reduced toxicity and improved long-term outcomes in select populations. Molecularly targeted drugs that have shown activity against metastatic disease may also hold promise in the curable setting.
    Conclusion: The field is very much in development, but emerging data demonstrate early promise. We are optimistic that ongoing research efforts will increasingly bring precision perioperative therapy to patients with resectable GI malignancies.
    MeSH term(s) Humans ; Precision Medicine ; Gastrointestinal Neoplasms/genetics ; Gastrointestinal Neoplasms/surgery ; Immunotherapy ; Neoadjuvant Therapy ; Brain Neoplasms
    Language English
    Publishing date 2023-08-24
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 2473-4284
    ISSN (online) 2473-4284
    DOI 10.1200/PO.22.00381
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Paving a pathway for drug development in HER2-positive biliary tract cancer.

    Chen, Christopher T / Goyal, Lipika

    The Lancet. Oncology

    2021  Volume 22, Issue 9, Page(s) 1204–1206

    MeSH term(s) Biliary Tract Neoplasms/drug therapy ; Biliary Tract Neoplasms/genetics ; Drug Development ; Humans ; Receptor, ErbB-2
    Chemical Substances Receptor, ErbB-2 (EC 2.7.10.1)
    Language English
    Publishing date 2021-09-03
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 2049730-1
    ISSN 1474-5488 ; 1470-2045
    ISSN (online) 1474-5488
    ISSN 1470-2045
    DOI 10.1016/S1470-2045(21)00465-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Case 8-2021: A 34-Year-Old Woman with Cholangiocarcinoma.

    Goyal, Lipika / Chen, Christopher T / Pierce, Theodore T / Deshpande, Vikram

    The New England journal of medicine

    2021  Volume 384, Issue 11, Page(s) 1054–1064

    MeSH term(s) Adenocarcinoma/pathology ; Adenocarcinoma/secondary ; Adult ; Bile Duct Neoplasms/diagnostic imaging ; Bile Duct Neoplasms/pathology ; Bile Duct Neoplasms/therapy ; Chemotherapy, Adjuvant ; Cholangiocarcinoma/diagnostic imaging ; Cholangiocarcinoma/pathology ; Cholangiocarcinoma/therapy ; Fatal Outcome ; Female ; Hepatectomy ; Humans ; Liver Neoplasms/diagnostic imaging ; Liver Neoplasms/pathology ; Liver Neoplasms/surgery ; Magnetic Resonance Imaging ; Neoplasm Recurrence, Local ; Pyrazoles/therapeutic use ; Pyrimidines/therapeutic use ; Pyrroles/therapeutic use ; Tomography, X-Ray Computed
    Chemical Substances Pyrazoles ; Pyrimidines ; Pyrroles ; futibatinib (4B93MGE4AL)
    Language English
    Publishing date 2021-03-17
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 207154-x
    ISSN 1533-4406 ; 0028-4793
    ISSN (online) 1533-4406
    ISSN 0028-4793
    DOI 10.1056/NEJMcpc2027092
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Journey of Generic Imatinib: A Case Study in Oncology Drug Pricing.

    Chen, Christopher T / Kesselheim, Aaron S

    Journal of oncology practice

    2017  Volume 13, Issue 6, Page(s) 352–355

    MeSH term(s) Antineoplastic Agents/economics ; Costs and Cost Analysis ; Drugs, Generic/economics ; Imatinib Mesylate/economics ; Medical Oncology/economics ; Protein Kinase Inhibitors/economics
    Chemical Substances Antineoplastic Agents ; Drugs, Generic ; Protein Kinase Inhibitors ; Imatinib Mesylate (8A1O1M485B)
    Language English
    Publishing date 2017-04-26
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2236338-5
    ISSN 1935-469X ; 1554-7477
    ISSN (online) 1935-469X
    ISSN 1554-7477
    DOI 10.1200/JOP.2016.019737
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Book ; Online: Carrier and Phonon Dynamics in Multilayer WSe2 captured by Extreme Ultraviolet Transient Absorption Spectroscopy

    Oh, Juwon / Chang, Hung-Tzu / Chen, Christopher T. / Aloni, Shaul / Schwartzberg, Adam / Leone, Stephen R.

    2022  

    Abstract: Carrier and phonon dynamics in a multilayer WSe2 film are captured by extreme ultraviolet (XUV) transient absorption (TA) spectroscopy at the W N6,7, W O2,3, and Se M4,5 edges (30-60 eV). After the broadband optical pump pulse, the XUV probe directly ... ...

    Abstract Carrier and phonon dynamics in a multilayer WSe2 film are captured by extreme ultraviolet (XUV) transient absorption (TA) spectroscopy at the W N6,7, W O2,3, and Se M4,5 edges (30-60 eV). After the broadband optical pump pulse, the XUV probe directly reports on occupations of optically excited holes and phonon-induced band renormalizations. By comparing with density functional theory calculations, XUV transient absorption due to holes are identified below the W O3 edge whereas signals at the Se M4,5 edges are dominated by phonon dynamics. Therein, 0.4 ps hole relaxation time, 1.5 ps carrier recombination time, and 1.7 ps phonon heating time are extracted. The acquisition of hole and phonon-induced signals in a single experiment can facilitate the investigation of the correlations between electron and phonon dynamics. Furthermore, the simultaneous observation of signals from different elements can be further extended to explore photochemical processes in multilayers and alloys, thereby providing key information for their applications in electronics, photocatalysts, and spintronics.

    Comment: 26 pages, 7 figures
    Keywords Condensed Matter - Materials Science
    Publishing date 2022-11-16
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Transforming healthcare delivery: Why and how accountable care organizations must evolve.

    Chen, Christopher T / Ackerly, D Clay / Gottlieb, Gary

    Journal of hospital medicine

    2016  Volume 11, Issue 9, Page(s) 658–661

    Abstract: Accountable care organizations (ACOs) have shown promise in reducing healthcare spending growth, but have proven to be financially unsustainable for many healthcare organizations. Even ACOs with shared savings have experienced overall losses because the ... ...

    Abstract Accountable care organizations (ACOs) have shown promise in reducing healthcare spending growth, but have proven to be financially unsustainable for many healthcare organizations. Even ACOs with shared savings have experienced overall losses because the shared savings bonuses have not covered the costs of delivering population health. As physicians and former ACO leaders, we believe in the concept of accountable care, but ACOs need to evolve if they are to have a viable future. We propose the novel possibility of allowing ACOs to bill fee-for-service for their population health interventions, a concept we call population health billing. Journal of Hospital Medicine 2016;11:658-661. © 2016 Society of Hospital Medicine.
    MeSH term(s) Accountable Care Organizations/economics ; Delivery of Health Care/economics ; Delivery of Health Care/methods ; Fee-for-Service Plans ; Humans ; Medicare/economics ; Patient Protection and Affordable Care Act ; United States
    Language English
    Publishing date 2016-08-16
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2233783-0
    ISSN 1553-5606 ; 1553-5592
    ISSN (online) 1553-5606
    ISSN 1553-5592
    DOI 10.1002/jhm.2589
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Walk-in clinics versus physician offices and emergency rooms for urgent care and chronic disease management.

    Chen, Connie E / Chen, Christopher T / Hu, Jia / Mehrotra, Ateev

    The Cochrane database of systematic reviews

    2017  Volume 2, Page(s) CD011774

    Abstract: Background: Walk-in clinics are growing in popularity around the world as a substitute for traditional medical care delivered in physician offices and emergency rooms, but their clinical efficacy is unclear.: Objectives: To assess the quality of care ...

    Abstract Background: Walk-in clinics are growing in popularity around the world as a substitute for traditional medical care delivered in physician offices and emergency rooms, but their clinical efficacy is unclear.
    Objectives: To assess the quality of care and patient satisfaction of walk-in clinics compared to that of traditional physician offices and emergency rooms for people who present with basic medical complaints for either acute or chronic issues.
    Search methods: We searched CENTRAL, MEDLINE, Embase, six other databases, and two trials registers on 22 March 2016 together with reference checking, citation searching, and contact with study authors to identify additional studies. We applied no restrictions on language, publication type, or publication year.
    Selection criteria: Study design: randomized trials, non-randomized trials, and controlled before-after studies.
    Population: standalone physical clinics not requiring advance appointments or registration, that provided basic medical care without expectation of follow-up. Comparisons: traditional primary care practices or emergency rooms.
    Data collection and analysis: We used standard methodological procedures expected by Cochrane and the Cochrane Effective Practice and Organisation of Care (EPOC) Group.
    Main results: The literature search identified 6587 citations, of which we considered 65 to be potentially relevant. We reviewed the abstracts of all 65 potentially relevant studies and retrieved the full texts of 12 articles thought to fit our study criteria. However, following independent author assessment of the full texts, we excluded all 12 articles.
    Authors' conclusions: Controlled trial evidence about the mortality, morbidity, quality of care, and patient satisfaction of walk-in clinics is currently not available.
    MeSH term(s) Ambulatory Care/standards ; Ambulatory Care Facilities/standards ; Chronic Disease/therapy ; Disease Management ; Emergency Service, Hospital/standards ; Humans ; Physicians' Offices/standards ; Quality of Health Care
    Language English
    Publishing date 2017-02-17
    Publishing country England
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't ; Review ; Systematic Review
    ISSN 1469-493X
    ISSN (online) 1469-493X
    DOI 10.1002/14651858.CD011774.pub2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: A Biomechanical Analysis of Interference Screw Versus Bone Tunnel Fixation of Flexor Hallucis Longus Tendon Transfers to the Calcaneus.

    Liu, George T / Balldin, B Christian / Zide, Jacob R / Chen, Christopher T

    The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons

    2017  Volume 56, Issue 4, Page(s) 813–816

    Abstract: The flexor hallucis longus tendon transfer is commonly used to restore function in chronic Achilles tendon ruptures and chronic Achilles tendinopathy. The tendon is often secured to the calcaneus either through a bone tunnel or by an interference screw. ... ...

    Abstract The flexor hallucis longus tendon transfer is commonly used to restore function in chronic Achilles tendon ruptures and chronic Achilles tendinopathy. The tendon is often secured to the calcaneus either through a bone tunnel or by an interference screw. We hypothesized that tenodesis using the bone tunnel method would be mechanically superior to interference screw fixation for flexor hallucis longus transfers. Eight matched pairs of cadaveric specimens were assigned randomly to the bone tunnel or interference screw technique and were loaded to failure. Biomechanical analysis was performed to evaluate the ultimate strength, peak stress, Young's modulus, failure strain, and strain energy. Unpaired comparison, paired comparison, and linear regression analyses were used to determine statistical significance. A slight 22% ± 9% decrease in Young's modulus and a 52% ± 18% increase of strain energy were found in the interference screw group. However, no differences in ultimate strength, peak stress, or failure strain were seen between the 2 groups on paired comparison. Our findings suggest that interference screw fixation provides similar spontaneous biomechanical properties to the use of a bone tunnel for flexor hallucis longus transfer to the calcaneus. The interference screw is a practical option for fixation of the flexor hallucis longus tendon to the calcaneus and can be performed through a single incision approach.
    Language English
    Publishing date 2017-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1146972-9
    ISSN 1542-2224 ; 1067-2516
    ISSN (online) 1542-2224
    ISSN 1067-2516
    DOI 10.1053/j.jfas.2017.04.014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Characterizing transition-metal dichalcogenide thin-films using hyperspectral imaging and machine learning.

    Shevitski, Brian / Chen, Christopher T / Kastl, Christoph / Kuykendall, Tevye / Schwartzberg, Adam / Aloni, Shaul / Zettl, Alex

    Scientific reports

    2020  Volume 10, Issue 1, Page(s) 11602

    Abstract: Atomically thin polycrystalline transition-metal dichalcogenides (TMDs) are relevant to both fundamental science investigation and applications. TMD thin-films present uniquely difficult challenges to effective nanoscale crystalline characterization. ... ...

    Abstract Atomically thin polycrystalline transition-metal dichalcogenides (TMDs) are relevant to both fundamental science investigation and applications. TMD thin-films present uniquely difficult challenges to effective nanoscale crystalline characterization. Here we present a method to quickly characterize the nanocrystalline grain structure and texture of monolayer WS
    Language English
    Publishing date 2020-07-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-020-68321-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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