Dr. Michael Fralick is an assistant professor in the Department of Medicine at the University of Toronto and a general internist at Mount Sinai Hospital. Stephen Morrissey, the interviewer, is the Executive Managing Editor of the Journal. M. Fralick and A.S. Kesselheim. The U.S. Insulin Crisis \u2014 Rationing a Lifesaving Medication Discovered in the 1920s. N Engl J Med 2019;381:1793-1795.