1. Saliva inhibits HIV-1 infectivity;Fox;JADA,1988
2. Components of saliva inactivate human immunodeficiency virus;Fultz;Lancet,1986
3. A method of submaxillary salivary collection without cannulation;Block;NY State Dent J,1962
4. A simple method of estimating 50 percent endpoints;Reed;Am J Hygiene,1938
5. Risk factors for seroconversion to human immunodeficiency virus among male homosexuals. Results from the Multicenter AIDS Cohort Study;Kingsley;Lancet,1987