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From The JAMA Network
JAMA Internal Medicine
Invited Commentary  | 
Maintaining Access to Medications When Plans Implement Tiered Pharmacy Networks
Jack Hoadley, PhD
JAMA Internal Medicine
Research Letter  | 
Association Between Narrow Pharmacy Networks and Medication Adherence
Jennifer M. Polinski, ScD, MPH; Olga S. Matlin, PhD; Christine Sullivan, MS, MBA; et al.
JAMA Internal Medicine
Original Investigation  | 
Association of Reference Payment for Colonoscopy With Consumer Choices, Insurer Spending, and Procedural Complications
James C. Robinson, PhD; Timothy T. Brown, PhD; Christopher Whaley, PhD; et al.
JAMA Internal Medicine
Research Letter  | 
A Randomized Trial Testing US Food and Drug Administration “Breakthrough” Language
Tamar Krishnamurti, PhD; Steven Woloshin, MD, MS; Lisa M. Schwartz, MD, MS; et al.