Interprofessional rehabilitation improves disability in adults with chronic non-specific low back pain compared to multidisciplinary rehabilitation - Long-term results from a multicentre, quasi-experimental study - Semrau, Jana; Hentschke, Christian; Buchmann, Jana; Meng, Karin; Vogel, Heiner M.; Faller, Hermann H.; Bork, Hartmut; Pfeifer, Klaus (7th World Congress of the World Institute of Pain (WIP 2014), 2014)