Jambarsang, Sara, and Moslem Taheri Soodejani. 2022. “The Impact of COVID-19 Vaccination in Iranian Elderly: 7 Percent of All-Cause Deaths Reduced by Vaccinating 2 Percent of Population; Letter to Editor”. Gastroenterology and Hepatology from Bed to Bench 15 (2). https://doi.org/10.22037/ghfbb.vi.2504.