US hospital care for patients with HIV infection and pneumonia: the role of public, private, and Veterans Affairs hospitals in the early highly active antiretroviral therapy era. - Uphold CR; Deloria-Knoll M; Palella FJ Jr.; Parada JP; Chmiel JS; Phan L; Bennett CL; Uphold, Constance R; Deloria-Knoll, Maria; Palella, Frank J Jr; Parada, Jorge P; Chmiel, Joan S; et al. (CHEST, 2004)