@misc{indiciaecd387fa2b4ce, title = {Effect of single and double strap backpacks on lung function.}, author = {S J Legg and C O Cruz}, year = {2004}, doi = {10.1080/0014013032000157878}, url = {https://pubmed.ncbi.nlm.nih.gov/14668165/}, note = {Source identifier: 14668165} }