title: Legionnaires' disease holds diagnostic pitfalls.
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis; D003937:Diagnosis, Differential; D006801:Humans; D007877:Legionnaires' Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000276:immunology; D011859:Radiography; D012141:Respiratory Tract Infections / Q000175:diagnosis*
chemical_list: D000907:Antibodies, Bacterial