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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
