@misc{indiciaeee3f19b0f750,
  title = {A simple method for calculating left ventricular functions from angiographic data using a programmable hand calculator.},
  author = {J H Vogel and R D Swenson and V Elings},
  year = {1976},
  doi = {10.1002/ccd.1810020213},
  url = {https://pubmed.ncbi.nlm.nih.gov/954077/},
  note = {Source identifier: 954077}
}