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Machata, A M; Kabon, B; Willschke, H; Fässler, K; Gustorff, B; Marhofer, P; Curatolo, M (2009). A new instrument for pain assessment in the immediate postoperative period. Anaesthesia, 64(4), pp. 392-8. Oxford: Wiley-Blackwell 10.1111/j.1365-2044.2008.05798.x
