Characteristics of Acupuncture Treatment Associated with Outcome: An Individual Patient Meta-Analysis of 17,922 Patients with Chronic Pain in Randomised Controlled Trials MacPherson, Hugh ; Maschino, Alexandra C. ; Lewith, George ; Foster, Nadine E. ; Witt, Claudia ; Vickers, Andrew J. Abstract Publication: PLoS ONE Pub Date: October 2013 DOI: 10.1371/journal.pone.0077438 Bibcode: 2013PLoSO...877438M