Ardena Lianto, L.M. 2023. GASTROINTESTINAL SYMPTOMS ARE ASSOCIATED WITH SEVERITY OF CORONAVIRUS DISEASE 2019: A SYSTEMATIC REVIEW. Journal of Advanced Research in Medical and Health Science (ISSN 2208-2425). 9, 6 (Jun. 2023), 49–53. DOI:https://doi.org/10.53555/nnmhs.v9i6.1732.