The acupuncture randomized trials study (back pain) was unblinded too early.
Wettig
Dieter
D
D015670:Acupuncture Therapy / Q000379:methods*; D001416:Back Pain / Q000628:therapy*; D005500:Follow-Up Studies; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome