On 2014 Jan 07, Robert Badgett commented:

This review includes the important trial comparing acupuncture to simulated acupuncture by Cherkin in 2009 and noted this trial was one of the 7 trials with low risk of bias.(1) However, this trial, which has an unfavorable conclusion when comparing acupuncture to simulated acupuncture, is not included in the analyses within this review.

Reference:

Cherkin CD et al. A randomized trial comparing acupuncture, simulated acupuncture, and usual care for chronic low back pain. Arch Intern Med. 2009. doi:10.1001/archinternmed.2009.65. PMID: 19433697

On 2014 Jan 07, Robert Badgett commented:

This review includes the important trial comparing acupuncture to simulated acupuncture by Cherkin in 2009 and noted this trial was one of the 7 trials with low risk of bias.(1) However, this trial, which has an unfavorable conclusion when comparing acupuncture to simulated acupuncture, is not included in the analyses within this review.

Reference:

Cherkin CD et al. A randomized trial comparing acupuncture, simulated acupuncture, and usual care for chronic low back pain. Arch Intern Med. 2009. doi:10.1001/archinternmed.2009.65. PMID: 19433697