1. Division of Immunology; Biomedical Sciences Research Center Alexander Fleming; Athens Greece
2. Laboratory of Molecular Virology; Hellenic Pasteur Institute; Athens Greece
3. Department of Histology and Embryology; School of Medicine, University of Athens; Athens Greece
4. Laboratory of Biochemistry; Technological Educational Institute of Thessaly; Larissa Greece
5. Biomedical Research Foundation; Academy of Athens; Athens Greece
6. Institute for Cancer Sciences; University of Manchester, Manchester Academic Health Science Centre; Manchester UK
7. Department of Medicine and Research Laboratory of Internal Medicine; Medical School, University of Thessaly; Larissa Greece