TY  - BOOK
ED  - World Health Organization
TI  - Prevention of sexual transmission of human immunodeficiency virus / World Health Organization
U1  - B 16.515 WHO -12518   
CY  - Switzerland, 1990.
KW  - Acquired immunodeficiency syndrome - Prevention and control - Transmission
KW  - Sexually transmitted diseases - Prevention and control
KW  - Aids - Prevention
KW  - HEA
N1  - WHO AIDS series 6
ER  -