Lubis, A. M., Siagian, C., Wonggokusuma, E., Marsetyo, A. F. and Setyohadi, B. (2017) “Comparison of Glucosamine-Chondroitin Sulfate with and without Methylsulfonylmethane in Grade I-II Knee Osteoarthritis: A Double Blind Randomized Controlled Trial”, Acta Medica Indonesiana, 49(2), p. 105. Available at: https://www.actamedindones.org/index.php/ijim/article/view/168 (Accessed: 30April2026).