@misc{indiciaeb94c6dc19695, title = {A comparison of three variable performance devices for postoperative oxygen therapy.}, author = {M E McBrien and W F Sellers}, year = {1995}, doi = {10.1111/j.1365-2044.1995.tb15096.x}, url = {https://pubmed.ncbi.nlm.nih.gov/7710024/}, note = {Source identifier: 7710024} }