@misc{indiciae5ac5193f0ca6, title = {Postexercise changes in ejection fraction associated with coronary artery disease.}, author = {U M Lütolf and D C van Dyke and J D Bristow and C S Weaver}, year = {1980}, url = {https://pubmed.ncbi.nlm.nih.gov/6771144/}, note = {Source identifier: 6771144} }