Nicholas Kiefer*, Christoph K Hofer, Gernot Marx, Martin Geisen, Raphaël Giraud, Nils Siegenthaler, Andreas Hoeft, Karim Bendjelid and Steffen Rex
* Corresponding author: Nicholas Kiefer nicholas.kiefer@ukb.uni-bonn.de
Critical Care 2012, 16:R98 doi:10.1186/cc11366
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