lower pulmonary tract cell populations collected by bronchoalveolar lavages ( bal ) were evaluated in three groups of immunocompromised patients : hiv infected patients with pneumocystis carinii ( pc ) pneumonitis ( n = 22 ) , or pneumonitis not related to pc ( n = 29 ) , and non-hiv-infected , immunocompromised patients with a pc pneumonitis ( n = 18 ) .
C0032285
pneumonitis
C1535939
pc pneumonitis