Oversight hearings on OSHA's proposed standard to protect health care workers against blood-borne pathogens including the AIDS and hepatitis B viruses. Volume 2, Hearings held in Washington, DC, January 24 and 31 ; and May 24, 1990 : hearings before the Subcommittee on Health and Safety of the Committee on Education and Labor, House of Representatives, One Hundred First Congress, second session