1Association of American Medical Colleges Center for Workforce Studies, 2450 N Street, N.W., Washington, DC 20037-1126. E-mail address for E.S. Salsberg: firstname.lastname@example.org. 2University of Chicago Medical Center, 5841 South Maryland Avenue, AMB 303 MC 3079, Chicago, IL 60637. E-mail address: email@example.com. 3Carolina Medical Center Orthopaedics, 1001 Blythe Boulevard, Suite 602, Charlotte, NC 28203. E-mail address for S.L. Frick: firstname.lastname@example.org. 4Dartmouth Medical School, HB 7251, Hanover NH 03755. E-mail address: email@example.com.