Ong, Angeli Nicole, Ceryl Cindy Tan, Maria Teresa Cañete, Bryan Albert Lim, and Jeremyjones Robles. 2022. “Association Between Metformin Use and Mortality Among Patients With Type 2 Diabetes Mellitus Hospitalized for COVID-19 Infection”. Journal of the ASEAN Federation of Endocrine Societies 36 (2):133-41. https://doi.org/10.15605/jafes.036.02.20.