@misc{indiciaec46b2b8d2371,
  title = {A digital module for cardiac pacemaker assessment.},
  author = {M Bilitch and D W Mortara and J S Sarma},
  year = {1981},
  doi = {10.1111/j.1540-8159.1981.tb06544.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6167946/},
  note = {Source identifier: 6167946}
}