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JAMA Internal Medicine
Perspective  | 
Allopurinol Overuse in Asymptomatic Hyperuricemia:  A Teachable Moment
Carla Carnovale, PharmD; Mauro Venegoni, MD; Emilio Clementi, MD, PhD
JAMA Internal Medicine
Original Investigation  | 
5α-Reductase Inhibitors and Risk of High-Grade or Lethal Prostate Cancer
Mark A. Preston, MD, MPH; Kathryn M. Wilson, ScD; Sarah C. Markt, MPH, ScD; et al.
JAMA Internal Medicine
Invited Commentary  | 
Role of Sildenafil in Melanoma Incidence and Mortality
June K. Robinson, MD
JAMA Internal Medicine
Original Investigation  | 
Sildenafil Use and Increased Risk of Incident Melanoma in US Men:  A Prospective Cohort Study
Wen-Qing Li, PhD; Abrar A. Qureshi, MD, MPH; Kathleen C. Robinson, PhD; et al.