Most-cited articles · 2020

The 50 most-cited articles in Journal watch, 2020

Ranked by OpenAlex citation count on 29 October 2026, out of 1,862 eligible articles Journal watch published in 2020. Ranks are frozen; this page will not change. Number one, with 170 citations: Pembrolizumab for Microsatellite-Instability–High Advanced Colorectal Cancer.

Cohort
1,862 articles
Listed
Top 50 (2.7%)
Open access
0 of 50
Snapshot
2026-10-29

The top of this list is dominated by COVID-19, with articles on management guidelines, clinical characteristics, incubation, transmission, and gastrointestinal and mental health effects filling most positions. A second theme is immune checkpoint inhibition in colorectal cancer, and a third is pharmacologic and clinical topics such as tobacco dependence treatment and penicillin allergy delabeling. The most-cited article is "Pembrolizumab for Microsatellite-Instability–High Advanced Colorectal Cancer" by David H. Ilson, with 170 citations.

Readers can use this ranked list to see which Journal watch articles from 2020 attracted the most citations, as counted by OpenAlex out of 1862 eligible articles. The titles and abstracts indicate the subjects covered, and the ranking offers a neutral view of citation attention rather than a judgment of quality.

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  1. 1
    top 0.1%

    Pembrolizumab for Microsatellite-Instability–High Advanced Colorectal Cancer

    David H. Ilson

    170 citationsdoi:10.1056/nejm-jw.na52865OpenAlex

    Show abstract

    Single-agent therapy and combination immune checkpoint inhibitor therapy are now approved for microsatellite-instability (MSI)–high colorectal cancer

  2. 2
    top 0.2%

    COVID-19 Management Guidelines

    Richard T. Ellison

    18 citationsdoi:10.1056/nejm-jw.na51604OpenAlex

    Show abstract

    Both the National Institutes of Health and the Infectious Diseases Society of America/Society of Healthcare Epidemiology of America/Pediatric

  3. 3
    top 0.2%

    Clinical Characteristics of 2019 Novel Coronavirus Infection

    Rajesh Tim Gandhi

    13 citationsdoi:10.1056/nejm-jw.na50821OpenAlex

    Show abstract

    The clinical spectrum of 2019 novel coronavirus (2019-nCoV) infection is still being defined. Now, investigators describe the characteristics of 99

  4. 4
    top 0.3%

    COVID-19 Incubation Period: An Update

    Stephen G. Baum

    10 citationsdoi:10.1056/nejm-jw.na51083OpenAlex

    Show abstract

    Infection with SARS-CoV-2, the virus that causes COVID-19, appears to be highly contagious and is primarily spread by droplets. Containment efforts

  5. 5
    top 0.3%

    Gastrointestinal Aspects of COVID-19

    Charles J. Kahi

    8 citationsdoi:10.1056/nejm-jw.na51324OpenAlex

    Show abstract

    Although the predominant symptoms of COVID-19 are respiratory, gastrointestinal (GI) manifestations can occur and may be overlooked. Researchers in

  6. 6
    top 0.4%

    Update on COVID-19

    Richard T. Ellison

    8 citationsdoi:10.1056/nejm-jw.na50868OpenAlex

    Show abstract

    Dear Readers,The 2019 novel coronavirus epidemic that has emerged from Wuhan, China, appears to have the potential to have a major health impact on a

  7. 7
    top 0.4%

    Pharmacologic Treatment for Tobacco Dependence

    Molly S. Brett

    7 citationsdoi:10.1056/nejm-jw.na52083OpenAlex

    Show abstract

    Sponsoring Organization: American Thoracic Society (ATS)BackgroundGuidelines published in 2008 by the U.S. Public Health Service (USPHS) recommended

  8. 8
    top 0.5%

    Presymptomatic Transmission of SARS-CoV-2

    Stephen G. Baum

    6 citationsdoi:10.1056/nejm-jw.na51294OpenAlex

    Show abstract

    Transmission of respiratory pathogens from asymptomatic persons to recipients no doubt occurs in many types of infection. For example, chickenpox is

  9. 9
    top 0.5%

    Supporting Children's Mental Health During COVID-19 School Closures

    Jenny S. Radesky

    5 citationsdoi:10.1056/nejm-jw.na51491OpenAlex

    Show abstract

    COVID-19-related school closures have affected over 1.5 billion children around the world. Concern has been raised about adverse mental health

  10. 10
    top 0.6%

    ACE Inhibitors and ARBs During the COVID-19 Pandemic

    Allan S. Brett

    5 citationsdoi:10.1056/nejm-jw.na51345OpenAlex

    Show abstract

    Many patients and clinicians are aware of the recently publicized interplay between SARS-CoV-2, the coronavirus responsible for COVID-19 illness, and

  11. 11
    top 0.6%

    Mental Health Effects of COVID-19 on Healthcare Workers in China

    Peter Roy‐Byrne

    5 citationsdoi:10.1056/nejm-jw.na51190OpenAlex

    Show abstract

    During infectious disease outbreaks, healthcare workers have suffered adverse psychological reactions. To learn whether this was true of the COVID-19

  12. 12
    top 0.7%

    Lopinavir-Ritonavir Was Not Effective for COVID-19

    Neil M. Ampel

    5 citationsdoi:10.1056/nejm-jw.na51172OpenAlex

    Show abstract

    Currently, there are no drugs documented to be effective to treat patients with COVID-19 arising from coronavirus SARS-CoV-2 infection. However,

  13. 13
    top 0.7%

    COVID-19: Latest Updates

    Richard T. Ellison

    5 citationsdoi:10.1056/nejm-jw.na51111OpenAlex

    Show abstract

    Dear Readers,The 2019 novel coronavirus epidemic that has emerged from Wuhan, China, has been having a major health impact on a worldwide basis.

  14. 14
    top 0.8%

    ACE2 Is the SARS-CoV-2 Receptor Required for Cell Entry

    George Sakoulas

    4 citationsdoi:10.1056/nejm-jw.na51115OpenAlex

    Show abstract

    The COVID-19 pandemic is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which shares high amino-acid sequence homology

  15. 15
    top 0.9%

    Genomic Characterization of the 2019 Novel Coronavirus

    Hana M. El Sahly

    4 citationsdoi:10.1056/nejm-jw.na50823OpenAlex

    Show abstract

    A coronavirus (CoV) was suspected to be the cause of the December 2019 viral pneumonia outbreak in Wuhan, China, given the epidemiologic similarities

  16. 16
    top 0.9%

    COVID-19 in Persons Living with HIV — What Do We Know Today?

    Carlos del Rı́o

    3 citationsdoi:10.1056/nejm-jw.na52137OpenAlex

    Show abstract

    Although the CDC lists poorly controlled HIV as a condition that may place individuals at risk for severe illness from COVID-19, until now the

  17. 17
    top 1%

    Latest Updates on COVID-19

    Richard T. Ellison

    3 citationsdoi:10.1056/nejm-jw.na50965OpenAlex

    Show abstract

    Dear Readers,The 2019 novel coronavirus epidemic that has emerged from Wuhan, China, appears to have the potential to have a major health impact on a

  18. 18
    top 1%

    Delabeling Penicillin Allergy

    David J. Amrol

    2 citationsdoi:10.1056/nejm-jw.na52898OpenAlex

    Show abstract

    Penicillin allergy is noted in the records of more than 10% of the U.S. population; however, most patients have either “outgrown” their allergy or

  19. 19
    top 1.1%

    Adult Multisystem Inflammatory Syndrome Associated with COVID-19

    Stephen G. Baum

    2 citationsdoi:10.1056/nejm-jw.na52622OpenAlex

    Show abstract

    A multisystem inflammatory syndrome associated with SARS-CoV-2 infection has been defined in some children (MIS-C). Researchers now report on 27 cases

  20. 20
    top 1.1%

    COVID-19 Coagulopathy: Excess Thrombosis

    Brady Lee Stein, Mhs

    2 citationsdoi:10.1056/nejm-jw.na52177OpenAlex

    Show abstract

    The coagulopathy associated with COVID-19 has been associated with elevated D-dimer and fibrinogen levels as well as with mild thrombocytopenia and

  21. 21
    top 1.2%

    COVID-19 Gynecology Practice Recommendations from ACOG

    Andrew M. Kaunitz

    2 citationsdoi:10.1056/nejm-jw.na51312OpenAlex

    Show abstract

    To accompany its newly released COVID-19 Practice Advisory, the American College of Obstetricians and Gynecologists (ACOG) has posted a rolling list of

  22. 22
    top 1.2%

    Convalescent Plasma Therapy in Patients with Severe COVID-19

    Anthony L. Komaroff

    2 citationsdoi:10.1056/nejm-jw.na51335OpenAlex

    Show abstract

    Immunotherapy with neutralizing antibodies present in convalescent plasma (CP) proved to be effective and safe for patients with SARS (severe acute

  23. 23
    top 1.3%

    Clinical Outcomes of Patients with COVID-19 Pneumonia in Intensive Care in Lombardy

    Hana M. El Sahly

    2 citationsdoi:10.1056/nejm-jw.na51334OpenAlex

    Show abstract

    In Lombardy, the epicenter of Italy's COVID-19 pandemic, health authorities created a network of intensive care units (ICUs) to coordinate management

  24. 24
    top 1.3%

    Does ECT Prevent Suicide

    Steven L. Dubovsky

    2 citationsdoi:10.1056/nejm-jw.na51261OpenAlex

    Show abstract

    Whether a course of electroconvulsive therapy (ECT) reduces the risk for suicide has not been fully resolved. To address this question, investigators

  25. 25
    top 1.4%

    Coagulopathy Associated with COVID-19

    Brady Lee Stein, Mhs

    2 citationsdoi:10.1056/nejm-jw.na51254OpenAlex

    Show abstract

    Lymphopenia is a common hematological abnormality among patients with COVID-19. In addition to respiratory failure, patients with severe illness are

  26. 26
    top 1.4%

    Convalescent Plasma Has Potential Utility for Managing COVID-19

    Hana M. El Sahly

    2 citationsdoi:10.1056/nejm-jw.na51267OpenAlex

    Show abstract

    In the search for an effective approach to manage COVID-19, researchers in China evaluated the administration of convalescent plasma to five critically

  27. 27
    top 1.5%

    Association of Comorbidities with COVID-19 Outcomes

    Thomas Glück

    2 citationsdoi:10.1056/nejm-jw.na51250OpenAlex

    Show abstract

    The coronavirus disease 19 (COVID-19) pandemic has spread rapidly around the globe with considerable morbidity and mortality. Older age and

  28. 28
    top 1.6%

    Serologic Tests for SARS-CoV-2: First Steps on a Long Road

    Mary Elizabeth Wilson

    2 citationsdoi:10.1056/nejm-jw.na51255OpenAlex

    Show abstract

    Three teams of investigators are developing serologic tests to answer key questions about SARS-CoV-2. Guo and colleagues looked at the kinetics of

  29. 29
    top 1.6%

    Colorectal Cancer 2020 Epidemiological Update

    Charles J. Kahi

    2 citationsdoi:10.1056/nejm-jw.na51140OpenAlex

    Show abstract

    The American Cancer Society has published updated colorectal cancer (CRC) incidence data (through 2016) from populationbased cancer registries and

  30. 30
    top 1.7%

    Remdesivir: A Promising Antiviral Against Coronaviruses

    George Sakoulas

    2 citationsdoi:10.1056/nejm-jw.na50889OpenAlex

    Show abstract

    Coronaviruses (CoV) have recently challenged global medicine through their ability to emerge as human pathogens from zoonotic sources, as shown by

  31. 31
    top 1.7%

    2019 Novel Coronavirus: New Clinical Insights

    Carlos del Rı́o

    2 citationsdoi:10.1056/nejm-jw.na50873OpenAlex

    Show abstract

    The first reports of the clinical characteristics of 2019 novel coronavirus (2019-nCoV) were recently published (NEJM JW Infect Dis Feb 2020 and Lancet

  32. 32
    top 1.8%

    Asymptomatic 2019-nCoV Transmission in Germany, and First U.S. Case Described

    Mary Elizabeth Wilson

    2 citationsdoi:10.1056/nejm-jw.na50842OpenAlex

    Show abstract

    Identifying people infected with 2019 novel coronavirus (2019-nCoV) in order to isolate them will be essential to halt virus spread. Can people

  33. 33
    top 1.8%

    2019 Novel Coronavirus: First Reports Published

    Rajesh Tim Gandhi

    2 citationsdoi:10.1056/nejm-jw.na50797OpenAlex

    Show abstract

    Coronaviruses typically cause common cold symptoms, but two previously identified betacoronaviruses, SARS-CoV and MERS-CoV, can result in severe

  34. 34
    top 1.9%

    Long-Acting Cabotegravir plus Rilpivirine: A Viable Option for Management of HIV Infection?

    Carlos del Rı́o

    1 citationsdoi:10.1056/nejm-jw.na52971OpenAlex

    Show abstract

    The efficacy of monthly injectable long-acting cabotegravir plus rilpivirine (LA CAB+RPV) for HIV infection was recently demonstrated in the ATLAS (N

  35. 35
    top 1.9%

    The Pfizer-BioNTech COVID-19 Vaccine: Remarkably Effective

    Richard T. Ellison

    1 citationsdoi:10.1056/nejm-jw.na52963OpenAlex

    Show abstract

    The rapid development of SARS-CoV-2 vaccines is one of the few bright spots of 2020. The lipid nanoparticle-formulated, nucleoside-modified mRNA

  36. 36
    top 2%

    Ofatumumab vs. Teriflunomide for Multiple Sclerosis

    Jaime Toro

    1 citationsdoi:10.1056/nejm-jw.na52689OpenAlex

    Show abstract

    Ofatumumab is a subcutaneous anti-CD20 monoclonal antibody self-administered once monthly by injection. It has been approved for relapsing-remitting

  37. 37
    top 2%

    Minocycline as an Adjunctive Treatment for Depression

    Joel Yager

    1 citationsdoi:10.1056/nejm-jw.na52744OpenAlex

    Show abstract

    Minocycline, a tetracycline antibiotic, has been shown to improve symptoms of schizophrenia and bipolar depression, ostensibly by reducing inflammatory

  38. 38
    top 2.1%

    Head Injury Linked to Gambling in Adolescents

    Joel Yager

    1 citationsdoi:10.1056/nejm-jw.na52595OpenAlex

    Show abstract

    Previous studies in adults have associated problem gambling with traumatic brain injury (TBI), alcohol use disorder, and suicidality. To see whether

  39. 39
    top 2.1%

    Incidence of Pulmonary Embolism in ED Patients During the COVID-19 Pandemic

    Lauren M. Westafer, До

    1 citationsdoi:10.1056/nejm-jw.na52640OpenAlex

    Show abstract

    In addition to the direct effects of SARS-CoV-2, several studies have found a higher than expected incidence of thrombotic events (pulmonary embolism

  40. 40
    top 2.2%

    Determination of Brain Death/Death by Neurological Criteria: The World Brain Death Project

    Craig Andrew Williamson

    1 citationsdoi:10.1056/nejm-jw.na52232OpenAlex

    Show abstract

    Sponsoring Organization: World Brain Death Project, assisted by international professional societies including the World Federation of Intensive and

  41. 41
    top 2.3%

    Preventing Problematic Internet Use During the COVID-19 Pandemic

    Matthew E. Peters

    1 citationsdoi:10.1056/nejm-jw.na52330OpenAlex

    Show abstract

    Sponsors and Authors: A multinational group of experts in the problematic use of information and communications technology (ICT), who were supported by

  42. 42
    top 2.3%

    Prevalence of SARS-CoV-2 Antibodies Among Healthcare Workers in a Disease Epicenter

    Paul S. Mueller, FACP. FACP.

    1 citationsdoi:10.1056/nejm-jw.na52240OpenAlex

    Show abstract

    The New York City metropolitan area emerged as an epicenter of the COVID-19 pandemic. A recent population study showed a prevalence of SARS-CoV-2

  43. 43
    top 2.4%

    The Biological Underpinnings of Fatigue in People with MS

    Anthony L. Komaroff

    1 citationsdoi:10.1056/nejm-jw.na52277OpenAlex

    Show abstract

    For many patients with multiple sclerosis (MS), severe fatigue is the most disabling symptom of the illness and a common cause of absence from work.

  44. 44
    top 2.4%

    Immunothrombosis in the Pathogenesis of COVID-19 Coagulopathy

    George Sakoulas

    1 citationsdoi:10.1056/nejm-jw.na52191OpenAlex

    Show abstract

    SARS-CoV-2 virus causes severe multisystem disease beyond acute respiratory distress syndrome. The mechanism of nonpulmonary involvement seems to

  45. 45
    top 2.5%

    Modeling the Impact of School Closures on COVID-19 Incidence and Mortality

    Sandra Bliss Nelson

    1 citationsdoi:10.1056/nejm-jw.na52154OpenAlex

    Show abstract

    As school districts nationwide contemplate reopening K–12 schools, considering the potential repercussions on COVID-19 transmission is of great

  46. 46
    top 2.5%

    What Are the Stresses of Grandparents Raising Grandchildren

    F. Bruder Stapleton

    1 citationsdoi:10.1056/nejm-jw.na52182OpenAlex

    Show abstract

    The challenges faced by grandparents and their ability to cope with the complicated circumstances of raising grandchildren are important health

  47. 47
    top 2.6%

    Guidelines on Returning Children to School During the COVID-19 Pandemic

    Deborah L. Lehman

    1 citationsdoi:10.1056/nejm-jw.na52031OpenAlex

    Show abstract

    Sponsoring Organization: American Academy of Pediatrics (AAP)Background and ObjectiveIn March of this year, many schools transitioned from in-person to

  48. 48
    top 2.6%

    Dexamethasone: First Drug Found to Reduce Mortality in People with COVID-19

    Rajesh Tim Gandhi

    1 citationsdoi:10.1056/nejm-jw.na52072OpenAlex

    Show abstract

    Because patients with severe COVID-19 often have evidence of excess inflammation, intense interest has centered on whether anti-inflammatory

  49. 49
    top 2.7%

    A Mutation in SARS-CoV-2 Spike Protein Is Associated with Increased Infectivity

    Neil M. Ampel

    1 citationsdoi:10.1056/nejm-jw.na52004OpenAlex

    Show abstract

    Overall, the genetic sequence diversity of SARS-CoV-2 is low. However, because most vaccine and antibody therapies target the trimeric spike protein,

  50. 50
    top 2.7%

    Subclinical Hypothyroidism in Pregnancy — The Debate Continues

    Robert W. Rebar

    1 citationsdoi:10.1056/nejm-jw.na51929OpenAlex

    Show abstract

    Confusion exists about whether to screen and treat women for subclinical hypothyroidism during pregnancy and even about what constitutes this

How to read this list

The cohort is every article, review and book chapter OpenAlex attributes to Journal watch with publication year 2020, excluding retracted works and paratext such as editorials and errata. The top 50 by citation count are listed; the percentile is the rank divided by the cohort size. 50 of the 50 entries have an abstract in OpenAlex. Counts were read on 29 October 2026 and will not be updated on this page, so a quoted rank stays verifiable. Full rules on the methodology page.

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