@misc{indiciaefa769d2c79c2, title = {An adjustable angle short-arm crutch.}, author = {B K Armstrong and P M Goatcher}, year = {1971}, doi = {10.1093/rheumatology/11.3.134}, url = {https://pubmed.ncbi.nlm.nih.gov/5572023/}, note = {Source identifier: 5572023} }