Pneumocystis carinii: the continuing enigma.
D006716:Homosexuality; D006801:Humans; D007108:Immune Tolerance; D008297:Male; D011010:Pneumocystis / Q000302:isolation & purification / Q000502:physiology; D011020:Pneumonia, Pneumocystis / Q000150:complications / Q000175:diagnosis / Q000382:microbiology; D012514:Sarcoma, Kaposi / Q000150:complications; D012878:Skin Neoplasms / Q000150:complications; D013577:Syndrome