Effects of preventive efforts among homosexual men.
Coutinho
R A
RA
Municipal Health Service, Department of Public Health and Environment, Amsterdam, The Netherlands.
van Griensven
G J
GJ
Moss
A
A
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control*; D006716:Homosexuality; D006801:Humans; D008297:Male