@misc{indiciae8b0287772654, title = {Regional lung expansion using 133Xe: theory and methods.}, author = {A H Bigler and A D Renzetti}, year = {1973}, doi = {10.1152/jappl.1973.35.5.770}, url = {https://pubmed.ncbi.nlm.nih.gov/4770362/}, note = {Source identifier: 4770362} }