1. Laboratory of ImmunologyInterdisciplinary Research Center of Autoimmune DiseasesDepartment of Medical ScienceUniversity of Eastern PiedmontNovaraItaly
2. Department of Genetics, Biology and BiochemistryUniversity of TurinTurinItaly
3. Division of RetrovirologyLaboratory of VirologyIstituto Superiore di SanitàRomeItaly
4. Department of Physiological ChemistryGraduate School of Pharmaceutical ScienceUniversity of TokyoHongoTokyoJapan