@misc{indiciaec40ae59fac15,
  title = {Prophylactic procainamide.},
  author = {S R Yarnall},
  year = {1970},
  doi = {10.1056/nejm197003052821014},
  url = {https://pubmed.ncbi.nlm.nih.gov/5413109/},
  note = {Source identifier: 5413109}
}