@misc{indiciae2587d2e405db, title = {Pulmonary function studies in ex-heroin users.}, author = {G Camargo and C Colp}, year = {1975}, doi = {10.1378/chest.67.3.331}, url = {https://pubmed.ncbi.nlm.nih.gov/1089507/}, note = {Source identifier: 1089507} }