[1] SUNY DOWNSTATE MED CTR,DEPT MED,DIV INFECT DIS,BOX 56,450 CLARKSON AVE,BROOKLYN,NY 11203
[2] SUNY DOWNSTATE MED CTR,DEPT OBSTET & GYNECOL,BROOKLYN,NY 11203
[3] DEPT HLTH,NEW YORK,NY
[4] UNIV HOSP DIJKZIGT,DEPT DERMATOVENEREOL,ROTTERDAM,NETHERLANDS