[Acupuncture for back pain].
van Tulder
M W
MW
Institute for Research in Extramural Medicine, Vrije Universiteit, Amsterdam, The Netherlands.
Irnich
D
D
D015670:Acupuncture Therapy; D001416:Back Pain / Q000628:therapy*; D006801:Humans; D015201:Meta-Analysis as Topic; D016032:Randomized Controlled Trials as Topic