Pal, A.K., Sen, S., Behera, S., Anand, R., Bhattacharyya, C., Kalidoss, K., S., A., ., S., Jagadeesh, P.C., Karvir, S., Patil, J.C., Anand, R., Jethwah, J., Suryavanshi, A., Sangtani, H.J., Jadhwar, S., Debnath, K., Panghate, A. and Moonot, P. 2022. Real world evidence of effectiveness and safety of an oral formulation containing un-denatured type-II collagen 40 mg and aflapin 100 mg (HAPID®) in the management of osteoarthritis of knee: findings of a prospective, multi-center, observational study. International Journal of Research in Orthopaedics. 9, 1 (Dec. 2022), 58–65. DOI:https://doi.org/10.18203/issn.2455-4510.IntJResOrthop20223439.