"Looking" for the cause of AIDS.
D000163:Acquired Immunodeficiency Syndrome / Q000209:etiology* / Q000473:pathology; D003584:Cytological Techniques; D003593:Cytoplasm / Q000648:ultrastructure*; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D006716:Homosexuality; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology / Q000648:ultrastructure*; D008297:Male