[1] UNIV CALIF SAN FRANCISCO,DEPT BIOCHEM & BIOPHYS,SAN FRANCISCO,CA 94143
[2] UNIV CALIF SAN FRANCISCO,DEPT PHARMACEUT CHEM,SAN FRANCISCO,CA 94143
[3] NIH,DEPT CRIT CARE MED,BETHESDA,MD 20892
[4] NATL JEWISH CTR IMMUNOL & RESP MED,DEPT PEDIAT,DIV MOLEC & CELLULAR BIOL,DENVER,CO 80206