Exploring 2D/3D input techniques for medical image analysis - E. V. Zudilova-Seinstra; P. M. A. Sloot; P. J. H. de Koning; A. Suinesiaputra; R. J. van der Geest; J. H. C. Reiber (International Conference on Information Visualisation, track Biomedical Visualization (MediViz09), Barcelona, Spain, 2009)