@misc{indiciaefb15e7ad5d19,
  title = {External graphic methods and simultaneous catheterization studies.},
  author = {H Takezawa},
  year = {1973},
  doi = {10.1253/jcj.37.701},
  url = {https://pubmed.ncbi.nlm.nih.gov/4800406/},
  note = {Source identifier: 4800406}
}