1. “Validation of computational fluid dynamics in CT-based airway models with SPECT/CT1”. de Backer JW, Vos WG, Vinchurkar SC, Claes R, Drollmann A, Wulfrank D, Parizel PM, Germonpré P, de Backer W, Radiology 257, 854 (2010).   http://doi.org/10.1148/radiol.10100322