title: Acquired immunodeficiency syndrome: an overview.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000175:diagnosis*; D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D011020:Pneumonia, Pneumocystis / Q000175:diagnosis; D012306:Risk; D012514:Sarcoma, Kaposi / Q000175:diagnosis