@misc{indiciae69b679414277, title = {Improved oxygenation during bronchoscopy.}, author = {A H Harken and H K Schonmetzler and S W Rosenkaimer and E M Barsamian}, year = {1972}, doi = {10.1016/s0003-4975(10)65284-8}, url = {https://pubmed.ncbi.nlm.nih.gov/4637475/}, note = {Source identifier: 4637475} }