Chizh, Nikolay A. “Effect of Respiration and Vascular Tone on Heart Rate Variability in Rats”. Problems of Cryobiology and Cryomedicine 26, no. 3 (September 23, 2016): 260–270. Accessed May 3, 2024. https://journal.cryo.org.ua/index.php/probl-cryobiol-cryomed/article/view/943.