1. Fondazione IRCCS “Cà-Granda” Ospedale Maggiore Policlinico; U.O. di Medicina Interna; Milan Italy
2. Dipartimento di Medicina Molecolare e Biotecnologie Mediche; Università degli Studi di Napoli “Federico II”; Naples Italy
3. CEINGE - Biotecnologie Avanzate; Naples Italy
4. Division of Hematology/Oncology; Department of Pediatrics; Istanbul Medical Faculty; Istanbul University; Istanbul Turkey
5. Department of Biochemistry and Clinical Biochemistry - Laboratory of Porphiria; Gulhane Military Academy of Medicine; Ankara Turkey
6. Department of Pediatrics; University of New Mexico; Albuquerque NM USA
7. Department of Pathology; University of New Mexico; Albuquerque NM USA
8. Dipartimento di Scienze Cliniche e di Comunità; Università degli Studi di Milano; Milan Italy