1. Evident Technology Center Europe GmbH , Münster , Germany
2. Department of Public Health , Forensic and Experimental Medicine, Histology and Embryology Unit, , Pavia , Italy
3. University of Pavia , Forensic and Experimental Medicine, Histology and Embryology Unit, , Pavia , Italy
4. Accademia dei Lincei , Roma , Italy
5. Centro Diagnostico Italiano , Milan , Italy
6. Research Center for Regenerative Medicine, Fondazione IRCCS Policlinico San Matteo , Pavia , Italy