%0 Guideline %T USPHS/IDSA guidelines for the prevention of opportunistic infections in persons infected with human immunodeficiency virus: introduction. USPHS/IDSA Prevention of Opportunistic Infections Working Group. %A Kaplan JE %A Masur H %A Holmes KK %A McNeil MM %A Schonberger LB %A Navin TR %A Hanson DL %A Gross PA %A Jaffe HW %J Clin Infect Dis %V 21 %N 0 %D Aug 1995 %M 8547495 %F 20.999 %X