Strategy in immunocompromised patients with pulmonary infiltrates.
D003586:Cytomegalovirus Infections / Q000175:diagnosis*; D006801:Humans; D007108:Immune Tolerance; D007877:Legionnaires' Disease / Q000175:diagnosis*; D009894:Opportunistic Infections / Q000175:diagnosis*; D011020:Pneumonia, Pneumocystis / Q000175:diagnosis*; D011024:Pneumonia, Viral / Q000175:diagnosis*