Mehrotra, M P Alpha-1 antitrypsin enzyme deficiency in bronchial asthma: a preliminary study. [electronic resource] - The Journal of the Association of Physicians of India Jul 1977 - 451-5 p. digital Publication Type: Journal Article ISSN: 0004-5772 Subjects--Topical Terms: AdolescentAdultAsthma--enzymologyChildFemaleHumansMaleSmokingalpha 1-Antitrypsin Deficiency