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Luginbühl, M; Yppärilä-Wolters, H; Rüfenacht, M; Petersen-Felix, S; Korhonen, I (2007). Heart rate variability does not discriminate between different levels of haemodynamic responsiveness during surgical anaesthesia. British journal of anaesthesia, 98(6), pp. 728-36. Oxford: Oxford University Press 10.1093/bja/aem085
