@misc{indiciaebe779642fcfb,
  title = {Age-adjusted normal tolerance limits for cardiovascular autonomic function assessment in the elderly.},
  author = {C V Clark and R Mapstone},
  year = {1986},
  doi = {10.1093/ageing/15.4.221},
  url = {https://pubmed.ncbi.nlm.nih.gov/3751748/},
  note = {Source identifier: 3751748}
}