@misc{indiciae20285557643b,
  title = {Cyclic sinus node dysfunction in a patient with hyperthyroidism.},
  author = {S Nakagawa and A Higa and H Kondoh and Y Koiwaya and K Tanaka},
  year = {1985},
  url = {https://pubmed.ncbi.nlm.nih.gov/4062469/},
  note = {Source identifier: 4062469}
}