title: Retraction statement.
authors: Department of Psychiatry, School of Medicine, University of Athens and University Mental Health Research Institute, Athens, Greece. panchris@otenet.gr
authors: Charalabos
authors: C
authors: Papageorgiou
authors: Christos
authors: C
authors: Pitsavos
authors: Demosthenes B
authors: DB
authors: Panagiotakos
authors: Kostantinos
authors: K
authors: Kontoangelos
authors: Christina
authors: C
authors: Chrysohoou
authors: George N
authors: GN
authors: Papadimitriou
authors: Andreas D
authors: AD
authors: Rabavilas