Upper gastrointestinal Kaposi's sarcoma in patients positive for HIV seropositivity.
D005770:Gastrointestinal Neoplasms / Q000150:complications*; D006679:HIV Seropositivity / Q000150:complications*; D006801:Humans; D012514:Sarcoma, Kaposi / Q000150:complications*; D015024:Zambia