Frida Setiawan Y. FRAILTY AND MORTALITY ASSOCIATION IN PATIENTS WITH COVID-19 : A SYSTEMATIC REVIEW. JARMHS [Internet]. 2022 Nov. 22 [cited 2025 Sep. 12];8(11):1-7. Available from: https://textitlejournal.com/nnpub.org/index.php/MHS/article/view/1427