Cahyawati, Wiwit Agung Sri Nur, Alfi Yasmina, I Nyoman Suarjana, Mohammad Rudiansyah, and Julius Henry. “Correlation Between Vitamin D Levels and Charlson Comorbidity Index With Sarcopenia in Geriatric Patients”. South Eastern European Journal of Public Health (November 13, 2024): 901–907. Accessed December 8, 2025. http://www.seejph.com/index.php/seejph/article/view/2190.