1. A code of practice for the safe use and disposal of sharps;British Medical Association,1990
2. Advisory Committee on Dangerous Pathogens. HIV-the causative agent of AIDS and related conditions,1990
3. Expert Advisory Group on AIDS. Guidance for clinical health care workers: protection against infection with HIV and hepatitis viruses;Department of Health,1990
4. Centrs for Disease Control. Guidelines for prevention of transnission of human immunodeficiency virus and hepatitis B virus to health care and public safety workers;MMWR,1989
5. Anti HBs protection in hospital workers vaccinated against hepatitis B: policy implications of a pilot study;Yassi, A.; McGill, M.; Jeanson, S.; Sekla, L.;BrJ IndustMed,1990