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Fig. 5 | Trials

Fig. 5

From: Using electroacupuncture to recover muscle strength in patients with knee osteoarthritis after total knee arthroplasty: a study protocol for a double-blinded, randomized, and placebo-controlled trial

Fig. 5

Difference of acupuncture needle and acupuncture depth between the two groups. a The tip of the pragmatic placebo needle (left) is blunt. b The pragmatic placebo needle (left) to be inserted into the sterile adhesive pads, but with no skin penetration. The acupuncture needle (right) to be inserted through the sterile adhesive pads into the skin

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