Focal networks and HIV risk among African-American male intravenous drug users.
Frey
F W
FW
Department of Political Science, University of Pennsylvania, Philadelphia 19104, USA.
Abrutyn
E
E
Metzger
D S
DS
Woody
G E
GE
O'Brien
C P
CP
Trusiani
P
P
D000328:Adult; D001741:Black or African American / Q000523:psychology; D015658:HIV Infections / Q000191:economics / Q000453:epidemiology / Q000523:psychology*; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D015143:Philadelphia / Q000453:epidemiology; D012309:Risk-Taking; D012725:Sexual Behavior; D012944:Social Support; D015819:Substance Abuse, Intravenous / Q000191:economics / Q000453:epidemiology / Q000523:psychology*