作者单位:Montefiore Med Ctr, Albert Einstein Coll Med, Bronx, NY 10467 USA[1]NYU, Sch Med, Dept Populat Hlth, Div Med Eth, New York, NY USA[2]Janian Med Care, Ctr Community Serv CUCS, New York, NY USA[3]NYU, Sch Med, Dept Psychiat, New York, NY 10003 USA[4]