1. Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
2. Department of Surgical Oncology, Cancer Centre, UMC Utrecht, Utrecht, The Netherlands
3. Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
4. Program in Developmental Biology and the Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, USA
5. Translational Cell and Tissue Research, University of Leuven, Leuven, Belgium
6. Department of Pediatrics, Division of Molecular Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands