@misc{indiciae914891c84734, title = {Standardized submaximal exercise testing in never smokers: a normative study.}, author = {A Gulsvik and L A Beckett and P Bakke and S Humerfelt and E Omenaas and F E Speizer}, year = {2001}, doi = {10.1046/j.1365-2281.2001.00363.x}, url = {https://pubmed.ncbi.nlm.nih.gov/11576165/}, note = {Source identifier: 11576165} }