Fereydooni, Arash, Neera Dahl, and Cassius Iyad Ochoa Chaar. 2020. “Technical and Ethical Challenges in the Care of an Independent Nonagenarian With Critical Limb Ischemia”. Archives of Clinical and Medical Case Reports 4 (1):130-37. https://fortunejournals.org/ojs/index.php/acmcr/article/view/22287.