Motazedian, Gholamreza, Poorya Aryanpoor, Ehsan Rahmanian, Samaneh Abiri, Navid Kalani, Naser Hatami, Farhad Bagherian, et al. “Incidence of Pediatric Perforated Appendicitis During the COVID-19 Pandemic; A Systematic Review and Meta-Analysis”. Archives of Academic Emergency Medicine 10, no. 1 (January 1, 2022): e3. Accessed August 18, 2026. https://journals.sbmu.ac.ir/aaem/index.php/AAEM/article/view/1421.