1. Department of Histology and Medical EmbryologyUniversity of Rome ‘La Sapienza’RomeItaly
2. II Chair of Pathology and Immunopathology Section of the Department of Experimental Medicine and PathologyUniversity of Rome ‘La Sapienza’RomeItaly
3. Istituto Pasteur Fondazione Cenci BolognettiUniversity of Rome ‘La Sapienza’RomeItaly
4. Laboratory of Pathology and Forensic Medicine, Hoôpital PoincaréGarchesFrance