Petrella RJ, Decaria J, Petrella M. Long term efficacy and safety of a combined low and high molecular weight hyaluronic acid in the treatment of osteoarthritis of the knee. Rheumatol Rep [Internet]. 2011 Mar. 23 [cited 2024 Apr. 30];3(1):e4. Available from: https://www.pagepress.org/journals/rr/article/view/rr.2011.e4