@misc{indiciaeced18fb426a7,
  title = {Plasma verapamil levels and exercise performance.},
  author = {D A Weiner and C H McCabe and S S Cutler and T J Ryan and M D Klein},
  year = {1984},
  doi = {10.1038/clpt.1984.134},
  url = {https://pubmed.ncbi.nlm.nih.gov/6734046/},
  note = {Source identifier: 6734046}
}