Targeted treatment in primary care for low back pain: the treatment system and clinical training programmes used in the IMPaCT Back study (ISRCTN 55174281).
Sowden G, Hill JC, Konstantinou K, Khanna M, Main CJ, Salmon P, Somerville S, Wathall S, Foster NE, on behalf of the IMPaCT Back study team. Fam Pract. 2012 Feb; 29(1):50-62. Epub 2011 Jun 27.