[1] SALK INST BIOL STUDIES,REGULATORY BIOL LAB,LA JOLLA,CA 92037
[2] INST MOLEK BIOL & TUMORFORSCH,D-3550 MARBURG,FED REP GER
[3] UNIV CALIF SAN DIEGO,DEPT BIOL,LA JOLLA,CA 92093
[4] UNIV CALIF SAN FRANCISCO,DEPT MED,METAB RES UNIT,SAN FRANCISCO,CA 94143
[5] UNIV CALIF SAN FRANCISCO,DEPT BIOCHEM BIOPHYS,SAN FRANCISCO,CA 94143