Fig. 3. Subject flow through the study. KOA: knee osteoarthritis, VAS: visual analogue scale, ACB: adductor canal block, IASLI: intra-articular steroid and lidocaine injection, NRS: numerical rating scale.

Korean J Pain 2022;35:191~201 https://doi.org/10.3344/kjp.2022.35.2.191

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