The full report is titled “Sexual Function in Men Older Than 50 Years of Age: Results from the Health Professionals Follow-up Study.” It is in the 5 August 2003 issue of Annals of Internal Medicine (volume 139, pages 161-168). The authors are C.G. Bacon, M.A. Mittleman, I. Kawachi, E. Giovannucci, D.B. Glasser, and E.B. Rimm.
