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(A) Total KOOS score over time in patients with different OA KL grade treated with intra-articular injection of MFAT. (B) VAS score over time in patients with different OA KL grade treated with intra-articular injection of MFAT. KL1 n = 80, KL2 n = 46, KL3 n = 32, KL4 n = 19.
