1. Allergy Unit, 2nd Dept. of Dermatology, Attikon University Hospital, Athens, Greece
2. Private practice of Dermatology, Thessaloniki, Greece
3. Dept. of Dermatology and Allergy Biederstein Technische, Universitait, Munich, Germany
4. Orthopaedic Division, University of Perugia, Perugia, Italy
5. Dept. of Physiology, Faculty of Medicine, Aristotle University, Thessaloniki, Greece
6. Dept. of Stomatology and Oral Science, Division of Oral Surgery, University “G. d'Annunzio”, Chieti
7. Orthopaedic Division, University G. d'Annunzio, Chieti
8. Immunology Division, University “G. d'Annunzio”, Chieti
9. Biomorphology Dept., University “G. d'Annunzio”, Chieti
10. Gynecology Division, University “G. d'Annunzio”, Chieti, Italy