1. Cómo se adquiere el sida? Publication: [Atlanta, Ga.] : U.S. Dept. of Health and Human Services, U.S. Public Health Service, Centers for Disease Control, [198-] Subject(s): Acquired Immunodeficiency Syndrome -- transmission
2. Cómo se adquiere el sida? Publication: [Atlanta, Ga.] : U.S. Dept. of Health and Human Services, U.S. Public Health Service, Centers for Disease Control, [198-] Subject(s): Acquired Immunodeficiency Syndrome -- transmissionAcquired Immunodeficiency Syndrome -- prevention & control
