L S Sommers1, K I Marton. 1. Internal Medicine Residency Program, St Mary's Medical Center, 450 Stanyan St, San Francisco, CA 94117-1079, USA. lsommers@chw.edu
Authors: J Showstack; O Fein; D Ford; A Kaufman; A Cross; M Madoff; H Goldberg; E O'Neil; G Moore; S Schroeder Journal: JAMA Date: 1992-05-13 Impact factor: 56.272