AU - Cherkin DC, Sherman KJ, Avins AL, et al TI - A randomized trial comparing acupuncture, simulated acupuncture, and usual care for chronic low back pain PT - JOUR DP - 2009 TA - Archives of Internal Medicine pages = {858-866}, VI - 169 IP - 9 AID - 10.1001/archinternmed.2009.65 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2009.65 SO - Archives of Internal Medicine May 11, 2009 169(9):858