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Melloh, M; Staub, L; Aghayev, E; Zweig, T; Barz, T; Theis, JC; Chavanne, A; Grob, D; Aebi, M; Roeder, C (2008). The international spine registry SPINE TANGO: status quo and first results. European spine journal, 17(9), pp. 1201-9. Berlin: Springer-Verlag 10.1007/s00586-008-0665-2
