@misc{indiciae114d30c248ec, title = {Activity after myocardial infarction.}, author = {J C Shee}, year = {1971}, doi = {10.1016/s0140-6736(71)90465-x}, url = {https://pubmed.ncbi.nlm.nih.gov/4105690/}, note = {Source identifier: 4105690} }