Fig. 2From: Randomised, double-blind comparison of a fixed co-formulation of intra-articular polynucleotides and hyaluronic acid versus hyaluronic acid alone in the treatment of knee osteoarthritis: two-year follow-upUpper lighter blue area: first-year part of the study leading to the interim analysis at the end of the first study year—i.e., outcomes up to 12 months [T5] discussed in Ref. 8. Lower darker blue area: second-year follow-upBack to article page