Sharpe I K, Ahmad M, Braun W
Chest. 1980 Aug;78(2):264-8. doi: 10.1378/chest.78.2.264.
Twenty-three members of a family in which six persons had repeated spontaneous pneumothorces were studied for physical, chemical and genetic markers of this disease. A relationship between the HLA haplotype A2, B40, the alpha 1, antitrypsin phenotype M1 M2 and the occurrence of spontaneous pneumothorax was suggested in this family.