TY  - GEN
AU  - Chitwood,D D
AU  - Comerford,M
AU  - Trapido,E J
TI  - Strategies for enhancing existing studies of the natural history of HIV-1 infection among drug users
SN  - 1046-9516
PY  - 1992///0127
KW  - Acquired Immunodeficiency Syndrome
KW  - epidemiology
KW  - HIV-1
KW  - Humans
KW  - Research Design
KW  - Substance Abuse, Intravenous
KW  - complications
KW  - United States
N1  - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.; Review
ER  -