@misc{indiciae6ded54c6e6ce, title = {A correction factor for helium absorption in lung volume determinations.}, author = {G BIRATH and E W SWENSON}, year = {1956}, doi = {10.3109/00365515609049261}, url = {https://pubmed.ncbi.nlm.nih.gov/13351549/}, note = {Source identifier: 13351549} }