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Cost-effectiveness of minimal interventional procedures for chronic mechanical low back pain: design of four randomised controlled trials with an economic evaluation

Esther T Maas*, Johan NS Juch, J George Groeneweg, Raymond WJG Ostelo, Bart W Koes, Arianne P Verhagen, Merel van Raamt, Frank Wille, Frank JPM Huygen and Maurits W van Tulder

BMC Musculoskeletal Disorders 2012, 13:260  doi:10.1186/1471-2474-13-260