2Spira AI,Marx PA,Patterson BK,et al.Cellular targets of infection and route of viral dissemination after an intravaginal inoculation of simian immunodeficiency virus into rhesus macaques.J Exp Med 1996;183:215-225.
3Bell DM.Occupational risk of human immunode ficiency virus infection in healthcare workers:an overview.Am J Med,1997;102(suppl 5B):9-15.
4Bila M.Kapita,Elizabeth N.AIDS IN AFRICA,Amanual for physicians.Geneva:World Health Organization,1992.1-19.