[1] VET ADM WADSWORTH MED CTR,CTR ULCER RES EDUC,BLDG 115,ROOM 219,LOS ANGELES,CA 90073
[2] VET ADM WADSWORTH MED CTR,DEPT SURG,LOS ANGELES,CA 90073
[3] UNIV CALIF LOS ANGELES,SCH MED,DEPT MED,LOS ANGELES,CA 90024
[4] HARVARD UNIV,SCH MED,DEPT BIOL CHEM & MOLEC PHARMACOL,BOSTON,MA 02115