'Surgeons fear threat of AIDS in the air'.
D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission*; D000391:Air Microbiology; D003754:Dental High-Speed Equipment / Q000009:adverse effects*; D003815:Dentists; D006509:Hepatitis B / Q000635:transmission; D006801:Humans; D016273:Occupational Exposure