Dwimartutie, N., Setiati, S., Tamin, T. Z., Prijanti, A. R., Harahap, A. R., Purnamasari, D., Harimurti, K. and Pramantara, I. D. P. (2023) “Vitamin D Levels in Pre-frail Older Adults and Its Correlation with Hand Grip Strength”, Acta Medica Indonesiana, 55(2), p. 172. Available at: http://actamedindones.org/index.php/ijim/article/view/2309 (Accessed: 22December2025).