Fig. 3From: Influences of De Qi induced by acupuncture on immediate and accumulated analgesic effects in patients with knee osteoarthritis: study protocol for a randomized controlled trialPlanned visit schedule of enrollment, interventions, and assessments. Notes: *t 13 is at the end of the follow-up (i.e., the 8th week). VAS visual analog scale, KOOS Knee injury and Osteoarthritis Outcome Score, C-MMASS Modified-Chinese version of the Massachusetts General Hospital Acupuncture Sensation ScaleBack to article page