JAMA – The Latest Medical Research, Reviews, and Guidelines

Research

Effect of Intra-articular Platelet-Rich Plasma vs Placebo on Pain and Cartilage Volume in Knee Osteoarthritis
Kim L. Bennell, PhD; et al.

Original Investigation
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Kim L. Bennell, PhD; et al.

Editorial
Trends in Obesity Prevalence Among Adults Aged 18 Through 25 Years, 1976-2018
Alejandra Ellison-Barnes, MD, MPH; et al.

Research Letter

Alejandra Ellison-Barnes, MD, MPH; et al.
Association of Bariatric Surgery With Adverse Outcomes in Patients With Nonalcoholic Steatohepatitis
Ali Aminian, MD; et al.

Original Investigation
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Ali Aminian, MD; et al.

Editorial
Association of COVID-19 mRNA Vaccination With Hospitalizations and Disease Severity
Mark W. Tenforde, MD, PhD; et al.

Original Investigation
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Mark W. Tenforde, MD, PhD; et al.

Editorial
Incidence of Pancreatic Cancer by Age and Sex in the US
Srinivas Gaddam, MD, MPH; et al.

Research Letter

Srinivas Gaddam, MD, MPH; et al.

Opinion

Taking Down the Shingle
Diane Roston, MD

A Piece of My Mind
free access
Diane Roston, MD
Platelet-Rich Plasma for Osteoarthritis and Achilles Tendinitis
Jeffrey N. Katz, MD, MSc

Editorial

Jeffrey N. Katz, MD, MSc
Bariatric Surgery as a Strategy for Improving Outcomes in Nonalcoholic Steatohepatitis
Kathleen E. Corey, MD, MPH, MMSc; et al.

Editorial

Kathleen E. Corey, MD, MPH, MMSc; et al.
Understanding Breakthrough Infections Following mRNA SARS-CoV-2 Vaccination
Michael Klompas, MD, MPH

Editorial
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Michael Klompas, MD, MPH
Contraception Requirements in Clinical Trials
Jennifer E. Balkus, PhD; et al.

Viewpoint
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Jennifer E. Balkus, PhD; et al.

Clinical Review & Education

Management of Acne Vulgaris
Dawn Z. Eichenfield, MD, PhD; et al.

Review
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Dawn Z. Eichenfield, MD, PhD; et al.
Use of Confidence Intervals in Interpreting Nonstatistically Significant Results
Alexander T. Hawkins, MD, MPH; et al.

JAMA Guide to Statistics and Methods

Alexander T. Hawkins, MD, MPH; et al.
Back Pain, Fever, and Cough in a 46-Year-Old Man
Aaron Richterman, MD, MPH; et al.

JAMA Clinical Challenge
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Aaron Richterman, MD, MPH; et al.
Serologic Testing for Hepatitis B
Maroun M. Sfeir, MD, MPH, MS; et al.

JAMA Diagnostic Test Interpretation
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Maroun M. Sfeir, MD, MPH, MS; et al.
Electrodiagnostic Testing for Diagnosing Polyneuropathy
Ryan D. Jacobson, MD; et al.

JAMA Diagnostic Test Interpretation
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Ryan D. Jacobson, MD; et al.