1. Institute of Pathology and Forensic Veterinary Medicine, Working Group Histology and Embryology; University of Veterinary Medicine Vienna; Vienna Austria
2. VetCORE, Facility for Research; University of Veterinary Medicine; Vienna Austria
3. Equine University Hospital; University of Veterinary Medicine Vienna; Vienna Austria
4. Division of Medical Biotechnology; Paul-Ehrlich-Institut; Langen Germany