TY  - RPRT
TI  - Low-level exercise testing before and after coronary artery bypass surgery.
AU  - D J Christopherson
AU  - M Shively
AU  - E S Sivarajan
PY  - 1984
DO  - 10.1016/0020-7489(84)90017-8
UR  - https://pubmed.ncbi.nlm.nih.gov/6334662/
ID  - 6334662
ER  -