TY  - RPRT
TI  - An improved shoulder wheel.
AU  - L D CHRISTMAN
AU  - V L BUEHLER
PY  - 1950
DO  - 10.1093/ptj/30.8.327
UR  - https://pubmed.ncbi.nlm.nih.gov/15430148/
ID  - 15430148
ER  -