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Rolli Salathé, Cornelia; Elfering, Achim; Tuschel, Alexander; Ogon, Michael; Mayer, H. Michael; Boos, Norbert (2017). Development and validation of the iDI: A short self-rating disability instrument for low back pain disorders. Global spine journal, 7(2), pp. 123-132. Sage 10.1177/2192568217694006
Zweig, Thomas; Mannion, Anne F; Grob, Dieter; Melloh, M; Munting, Everard A; Tuschel, Alexander; Aebi, Max; Röder, Christoph (2009). How to Tango: a manual for implementing Spine Tango. European spine journal, 18 Suppl 3(Suppl 3), pp. 312-320. Berlin: Springer-Verlag 10.1007/s00586-009-1074-x
