1. Department of Human Anatomy and Histology; Faculty of Medicine; University of Zaragoza; Zaragoza Spain
2. Aragon Health Research Institute (IIS Aragón); Zaragoza Spain
3. Laboratory of Electron Microscopy; ‘Victor Babeş’ National Institute of Pathology; Bucharest Romania
4. Department of Cellular and Molecular Medicine; ‘Carol Davila’ University of Medicine; Bucharest Romania
5. Division of Advanced Studies; ‘Victor Babeş’ National Institute of Pathology; Bucharest Romania