@misc{indiciae67e5d3e78048, title = {NORMAL VARIATIONS IN RESPIRATORY AND CARDIOVASCULAR TESTING.}, author = {A W SEXTON}, year = {1964}, doi = {10.1093/ptj/44.10.891}, url = {https://pubmed.ncbi.nlm.nih.gov/14217344/}, note = {Source identifier: 14217344} }