@misc{indiciaee9f9c8e1993a, title = {Shuttle walking test.}, author = {S Doffman and P Hawkins}, year = {2001}, doi = {10.1136/thorax.56.11.895a}, url = {https://pubmed.ncbi.nlm.nih.gov/11699499/}, note = {Source identifier: 11699499} }