Peyravi, Mahmoudreza, Eric Carlström, Per Örtenwal, and Amir Khorram-Manesh. “Prehospital Assessment of Non-Traumatic Abdominal Pain”. Iranian Red Crescent Medical Journal 23, no. 6 (June 21, 2021). Accessed October 4, 2022. https://ircmj.com/index.php/IRCMJ/article/view/660.