1. Institute of Clinical Molecular Biology and Tumour Genetics, GSF Research Centre for Environment and Health
2. Department of Comparative Medicine
3. Department of Veterinary Anatomy II
4. Institute of Veterinary Pathology, Ludwig-Maximilian University of Munich, Munich
5. Institute of Molecular Medicine, University of California at San Diego School of Medicine, La Jolla, California
6. Institute of Developmental Genetics, GSF Research Centre for Environment and Health, Neuherberg, Germany