TY - JOUR AN - 3 AU - Hughes,P.H. AU - Brandenburg,N. AU - Baldwin,J.r DC. TI - Prevalence of substance use among US physicians. JO - Journal of the American Medical Association PY - 1992 VL - 267 SP - 2333-2339 M2 - 2333 DO - 10.1001/jama.1992.03480170059029 ER -