1. Genetics Branch, Center for Cancer Research, National Cancer Institute/National Institutes of Health, Bethesda, MD, USA
2. Computational Biology Branch, National Center for Biotechnology Information, National Institutes of Health, Bethesda, MD, USA
3. Unitat de Biologia Cellular i Genètica Mèdica, Departament de Biologia Cellular, Fisiologia i Immunologia, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
4. Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
5. Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany
6. Departments of Biological Sciences and Computational Biology, Carnegie Mellon University, Pittsburgh, PA, USA