@misc{indiciae88073d03c68f,
  title = {Heart rate-left ventricular ejection time relations - Variations during postural change and cardiovascular challenges},
  author = {Lance, V. Q. and Spodick, D. H.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770034576},
  note = {Source identifier: 19770034576}
}