title: Capsule-deficient Cryptococcus neoformans in AIDS patients.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000382:microbiology*; D003454:Cryptococcus / Q000302:isolation & purification*; D003455:Cryptococcus neoformans / Q000302:isolation & purification* / Q000648:ultrastructure; D006801:Humans