Trainini, Jorge Carlos, Mario Wernicke, Mario Beraudo, and Alejandro Trainini. “The Fulcrum of the Human Heart (Cardiac Fulcrum)”. Journal of Cardiology and Cardiovascular Medicine 8, no. 3 (January 3, 2024): 001–005. Accessed December 5, 2025. https://www.cardiologymedjournal.com/index.php/jccm/article/view/jccm-aid1171.