@misc{indiciaee83a5192fb81, title = {An adjustable walking-platform.}, author = {M L LEE and L S TRAFFORD}, year = {1962}, doi = {10.1016/s0140-6736(62)90509-3}, url = {https://pubmed.ncbi.nlm.nih.gov/13929122/}, note = {Source identifier: 13929122} }