The PHS collaborated with local doctors and nurses to recruit roughly 400 Black men presumed to have noncontagious late-stage syphilis, as well as 200 non-syphilitic Black men for their control group.
PHS与当地医生和护士合作,招募了大约400名被认为患有非传染性晚期梅毒的黑人男性,以及200名非梅毒黑人男性作为他们的对照组。