@misc{indiciaee1cc8b0f3de5, title = {Standardization of pulmonary epidemiologic methods. Three blows or five?}, author = {J T Sharp}, year = {1979}, doi = {10.1378/chest.76.4.375}, url = {https://pubmed.ncbi.nlm.nih.gov/477419/}, note = {Source identifier: 477419} }