@misc{indiciae3800fc40b5c3, title = {Air pollution and COPD.}, author = {E M Cordasco and H S VanOrdstrand}, year = {1977}, doi = {10.1080/00325481.1977.11712251}, url = {https://pubmed.ncbi.nlm.nih.gov/876896/}, note = {Source identifier: 876896} }