Acupuncture for chronic back pain: what level of evidence?
Delaney
Paul A
PA
D015667:Acupuncture Analgesia / Q000379:methods*; D001416:Back Pain / Q000628:therapy*; D002908:Chronic Disease; D019317:Evidence-Based Medicine / Q000379:methods*; D006801:Humans; D010147:Pain Measurement; D016896:Treatment Outcome