[1] SAN FRANCISCO GEN HOSP, MED CTR,CTR CLIN STUDY,MED SERV,BLDG 100,ROOM 321, 1001 POTRERO AVE, SAN FRANCISCO, CA 94110 USA
[2] UNIV CALIF SAN FRANCISCO, DEPT MED, SAN FRANCISCO, CA 94143 USA
[3] ESCOLA PAULISTA MED, DIV ENDOCRINOL, BR-04023 SAO PAULO, SP, BRAZIL