@misc{indiciaecbf35fe315b7,
  title = {Atrial fibrillation-some current problems.},
  author = {S B Olsson},
  year = {1980},
  doi = {10.1111/j.0954-6820.1980.tb09667.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7368963/},
  note = {Source identifier: 7368963}
}