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From The JAMA Network
JAMA Internal Medicine
Invited Commentary  | 
Folate Testing:  Time to Retire Your VCR
Alan H. B. Wu, PhD
JAMA Internal Medicine
Research Letter  | 
Low Yield of Outpatient Serum Folate Testing:  Eleven Years of Experience
Jesse Theisen-Toupal, MD; Gary Horowitz, MD; Anthony Breu, MD
JAMA
Editorial  | 
The Challenge of Creating an Evidence-Based Guideline for Sickle Cell Disease
Michael R. DeBaun, MD, MPH
JAMA
The JAMA Network Revisited  | 
Peculiar Elongated and Sickle-Shaped Red Blood Corpuscles in a Case of Severe Anemia
James B. Herrick, M.D.