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. Author manuscript; available in PMC: 2018 May 1.
Published in final edited form as: Pain. 2017 May;158(5):784–793. doi: 10.1097/j.pain.0000000000000747

Figure 2. Effects of acupuncture and no acupuncture control over time since end of treatment.

Figure 2

Line thickness represents the number of trials contributing data at these time points: the thicker line represents 5–9 trials and the thinner line represents 2–4 trials.