@misc{indiciaec311e284d0f2,
  title = {Effects of verapamil on sinus node function in man.},
  author = {G Breithardt and L Seipel and E Wiebringhaus and F Loogen},
  year = {1978},
  url = {https://pubmed.ncbi.nlm.nih.gov/710495/},
  note = {Source identifier: 710495}
}