inical Research. JAMA. 1998;280:1427- 1431. 35 Rosenberg LE 'fhe physician-scientist: An essential—and fragile—link in the medical research chain. I din Invest. 1999;103:1621- 1626. SO8 Academic Medicine, Vol. 86, No. 4 /April 2011 Copyright O by the Association of American Medical Colleges. Unauthorized