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. 2018 Nov 30;47(1):19–30. doi: 10.1177/0300060518800609

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© The Author(s) 2018

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Figure 3. — Network of randomized controlled trials comparing different acupuncture therapies for primary dysmenorrhoea treatment. The thickness of the connecting lines represents the number of trials between each comparator, and the size of each node corresponds to the number of subjects who received the same pharmacological agent (sample size). (A: Non-steroidal anti-inflammatory drugs [NSAIDs]; B: Traditional acupuncture; C: Eye acupuncture; D: Wrist–ankle acupuncture; E: Superficial acupuncture; F: Moxibustion; G: Electroacupuncture; H: Ear acupuncture; I: Abdominal acupuncture).