@misc{indiciae2c7883141432, title = {Supplementary static effort during dynamic exercise. Its influence on electrocardiogram, haemodynamic and metabolic adaptation of circulation in coronary patients.}, author = {E Wójcik-Ziółkowska and L Ziółkowski and G A Szulczyk and M Płachcińska-Bijak}, year = {1988}, url = {https://pubmed.ncbi.nlm.nih.gov/3234008/}, note = {Source identifier: 3234008} }