We submitted two surveys to the electronic archive arXiv. The first survey Feature Lines for Illustrating Medical Surface Models: Mathematical Background and Survey written by Kai Lawonn and Bernhard Preim is about feature lines. Here, several feature line methods are presented and analyzed. Furthermore, this survey provides also the discrete differential geometry background, which is necessary for understanding the feature line concepts.
The second survey by Bernhard Preim et al. was a joint work with the visualization group of Bergen headed by Helwig Hauser, the image processing group headed by Klaus Tönnies, and Henry Völzke the head of the study of health in Pomerania. The survey Visual Analytics of Image-Centric Cohort Studies in Epidemiology discusses cohort studies and how they can be evaluated with visual analytics.