V. Maheshwari, G. V. Daftary, N. N. Patil, and B. M. Khemnar, “Native collagen type II and Aflapin® in the management of hip and knee osteoarthritis: a single-centre prospective observational study”, Int J Res Med Sci, vol. 14, no. 4, pp. 1417–1421, Mar. 2026.