Institute of Anatomy, Ratzeburger Allee, Lübeck, 160, 23562, Germany. faehnrich@anat.uni-luebeck.de.|Institute for Software Engineering and Programming Languages, Ratzeburger Allee, Lübeck, 160, 23562, Germany.|Institute for Software Engineering and Programming Languages, Ratzeburger Allee, Lübeck, 160, 23562, Germany.|Institute for Software Engineering and Programming Languages, Ratzeburger Allee, Lübeck, 160, 23562, Germany.|Institute for Software Engineering and Programming Languages, Ratzeburger Allee, Lübeck, 160, 23562, Germany.|Institute of Anatomy, Ratzeburger Allee, Lübeck, 160, 23562, Germany.|Institute for Biostatistics and Informatics in Medicine and Ageing Research, Ernst-Heydemann-Str. 8, Rostock, 18057, Germany.