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Wolthuis EK, Vlaar AP, Hofstra JJ, Roelofs JJ, de Waard V, Juffermans NP, Schultz MJ.Wolthuis EK, et al. Among authors: juffermans np.Crit Care Res Pract. 2011;2011:217896. doi: 10.1155/2011/217896. Epub 2011 Jul 14.Crit Care Res Pract. 2011.PMID: 21789277Free PMC article.