Letsios A, Polyzos N, Poulopoulos Ch, Skamnakis Ch Department of Social Work, School of Social, Political & Economical Sciences, Democritus University of Thrace, Komotini, Department of Social Policy, Panteion University, Athens, Greece
Zibis AH, Fyllos AH, Arvanitis DL
Department of Anatomy, Faculty of Medicine, University of Thessaly, Larissa, Department of Orthopedics, General Hospital of Karditsa, Karditsa, Greece