@misc{indiciaec728d9c70a66,
  title = {Assisted circulation. I. An improved method for counterpulsation.},
  author = {W C BIRTWELL and H S SOROFF and M WALL and A BISBERG and H J LEVINE and R A DETERLING},
  year = {1962},
  url = {https://pubmed.ncbi.nlm.nih.gov/13869455/},
  note = {Source identifier: 13869455}
}