@misc{indiciae261c2bbf75b5, title = {Persistence of improved exercise tolerance and degree of revascularization after coronary bypass surgery. A prospective randomized study.}, author = {M H Frick and P T Harjola and M Valle}, year = {1979}, doi = {10.1002/clc.4960020201}, url = {https://pubmed.ncbi.nlm.nih.gov/45412/}, note = {Source identifier: 45412} }