TY - GEN AU - Chohan , Naina. ;ed. AU - Frohlich , Edward D. ;ed. TI - The medical clinics of north America Vol - 76: new challenges in internal medicine SN - 00257125 U1 - 616 PY - 1992/// CY - Philadelphia PB - W.B.Saunders Company KW - INTERNAL-MEDICINE KW - MEDICINE ER -