Dr. Ameet Sarpatwari is an epidemiologist in the Division of Pharmacoepidemiology and Pharmacoeconomics at Brigham and Women’s Hospital. Stephen Morrissey, the interviewer, is the Managing Editor of the Journal. A. Sarpatwari, J. Avorn, and A.S. Kesselheim. State Initiatives to Control Medication Costs — Can Transparency Legislation Help? N Engl J Med 2016;