Fadhilah Hayati, Dedi Ardinata, Nuraiza Meutia, Ririe Fachrina Malisie, and Muhammad Ichwan. “Plasma Sirt-1 Level in Various Frailty Degree in Elderly Outpatients at Prof. Chairudin P. Lubis Hospital, Medan”. International Journal of Ecophysiology, vol. 5, no. 2, Nov. 2023, pp. 76-84, doi:10.32734/ijoep.v5i2.13681.