@misc{indiciaecdebafc25ce6,
  title = {Relative cardiac efficiency and ST depression during progressive exercise test.},
  author = {I Berényi and G Ludwig and E Böszörményi},
  year = {1981},
  doi = {10.1159/000173264},
  url = {https://pubmed.ncbi.nlm.nih.gov/7249002/},
  note = {Source identifier: 7249002}
}