Σύνδρομο κενού σακου

Question

&Mu;&epsilon;&tau;ά &alpha;&pi;ό &sigma;ύ&nu;&delta;&rho;&omicron;&mu;&omicron; &kappa;&epsilon;&nu;&omicron;ύ &sigma;ά&kappa;&omicron;&upsilon; &kappa;&alpha;&iota; &alpha;&pi;ό&xi;&epsilon;&sigma;&eta; &pi;ό&tau;&epsilon; &mu;&pi;&omicron;&rho;ώ &nu;&alpha; &alpha;&rho;&chi;ί&sigma;&omega; &pi;&rho;&omicron;&sigma;&pi;ά&theta;&epsilon;&iota;&epsilon;&sigmaf; &gamma;&iota;&alpha; &pi;&alpha;&iota;&delta;ί?