TY  - RPRT
TI  - A device to encourage postoperative exercise.
AU  - D C MACKENZIE
AU  - T JAMIESON
PY  - 1962
DO  - 10.1016/s0140-6736(62)91082-6
UR  - https://pubmed.ncbi.nlm.nih.gov/14467949/
ID  - 14467949
ER  -