title: Angiotensin converting enzyme estimation in pyrexia of unknown origin with bilateral hilar lymphadenopathy--an essential investigation.
authors.forename: M S
authors.initials: MS
authors.lastname: Barthwal
mesh_terms: D003937:Diagnosis, Differential; D005335:Fever of Unknown Origin / Q000097:blood* / Q000209:etiology; D006801:Humans; D008206:Lymphatic Diseases / Q000097:blood* / Q000150:complications; D007703:Peptidyl-Dipeptidase A / Q000097:blood*; D012507:Sarcoidosis / Q000097:blood / Q000150:complications / Q000175:diagnosis; D014391:Tuberculosis, Miliary / Q000097:blood / Q000150:complications / Q000175:diagnosis
chemical_list: D007703:Peptidyl-Dipeptidase A