@misc{indiciae270a38b56c69, title = {Hypoxaemia in chronic obstructive bronchitis.}, author = {H C Middleton and M D Peake and P Howard}, year = {1979}, doi = {10.1136/thx.34.2.213}, url = {https://pubmed.ncbi.nlm.nih.gov/483187/}, note = {Source identifier: 483187} }