the expression of hla-dr ( ia-like ) antigens on human macrophages was investigated by analyses of cells from bronchoalveolar lavage fluid obtained from 12 patients with pulmonary sarcoidosis , six patients with extrinsic allergic alveolitis , nine patients with cryptogenic fibrosing alveolitis , 11 normal non-smokers , and 12 normal smokers .
C0019764
hla-dr
C0019754
ia-like