1. 2nd Department of Paediatrics, School of Medicine, Aristotle University of Thessaloniki
2. Department of Genetics, Development and Molecular Biology, Biology School, Aristotle University of Thessaloniki, Thessaloniki
3. Physiology Department, School of Medicine, Aristotle University of Thessaloniki, Athens, Greece
4. Laboratory of Cellular Immunology, Institute Pasteur Hellenique, Athens, Greece