@misc{indiciaef5a44932647d,
  title = {Studies on the coronary microcirculation by direct visualization.},
  author = {K Hellberg and H Wayland and A L Rickart and R J Bing},
  year = {1972},
  doi = {10.1016/0002-9149(72)90158-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5021488/},
  note = {Source identifier: 5021488}
}