Pollock JD, Makaryus AN. Physiology: Cardiac cycle. StatPearls Publishing, US National Library of Medicine. 3 October 2022 [28 March 2024]. (原始内容存档于2024-06-20).
Pollock JD, Makaryus AN. Physiology: Cardiac cycle. StatPearls Publishing, US National Library of Medicine. 3 October 2022 [28 March 2024]. (原始内容存档于2024-06-20).