@misc{1161826,
  author = {Harry A Schafft},
  title = {Reliability technology for cardiac pacemakers II:},
  year = {1977},
  month = {1977-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.400-42},
  language = {en},
}