German acupuncture trials for chronic low back pain.
Wand
Benedict M
BM
O'Connell
Neil
N
D015670:Acupuncture Therapy; D006801:Humans; D017116:Low Back Pain / Q000628:therapy*; D008402:Mass Media; D015990:Placebo Effect; D016032:Randomized Controlled Trials as Topic / Q000379:methods*