TY  - RPRT
TI  - Heart rate--left ventricular ejection time relations. Variations during postural change and cardiovascular challenges.
AU  - V Q Lance
AU  - D H Spodick
PY  - 1976
DO  - 10.1136/hrt.38.12.1332
UR  - https://pubmed.ncbi.nlm.nih.gov/1008975/
ID  - 1008975
ER  -