Ullah, S. A.; Ahmed, F.; Sultana, N.; Hossain, S. A. Efficacy of Combination Therapy of Hyaluronic Acid and Methylprednisolon Verses Hyaluronic Acid Single Therapy in Knee Osteoarthritis : A Comparative Study. Northern Int. Med. Coll. J. 2020, 10, 366-369.