Eng, Maia, et al. “Triple Versus Double Orifice Valves After Transcatheter Edge-to-Edge Repair: Clinical Features and Outcomes”. Cardiology and Cardiovascular Medicine, vol. 8, no. 1, Jan. 2024, pp. 7-14, http://www.fortunejournals.org/ojs/index.php/ccm/article/view/16449.