{Reference Type}: Guideline {Title}: 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. {Author}: Kaplan JE;Masur H;Holmes KK;McNeil MM;Schonberger LB;Navin TR;Hanson DL;Gross PA;Jaffe HW; {Journal}: Clin Infect Dis {Volume}: 21 {Issue}: 0 {Year}: Aug 1995 {Factor}: 20.999 {Abstract}: