Siregar, Gontar Alamsyah, Ginanda Putra Siregar, and Darmadi Darmadi. “Gastrointestinal Aspects of COVID-19: A Review”. Open Access Macedonian Journal of Medical Sciences 8, no. T1 (June 20, 2020): 52–54. Accessed November 22, 2024. https://oamjms.eu/index.php/mjms/article/view/4891.