Seto, Euphemia, Siti Setiati, Purwita W Laksmi, and Tirza Z Tamin. “Diagnostic Test of a Scoring System for Frailty Syndrome in the Elderly According to Cardiovascular Health Study, Study of Osteoporotic Fracture and Comprehensive Geriatric Assessment Based Frailty Index Compared With Frailty Index 40 Items”. Acta Medica Indonesiana 47, no. 3 (June 1, 2015). Accessed May 13, 2025. https://www.actamedindones.org/index.php/ijim/article/view/31.