datepublished: 2015subjectTerm: II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES_or_V. LAW AND SOCIAL SCIENCES_or_IV. MEDICINE AND HEALTH SCIENCES, LIFE SCIENCES, BIOLOGICAL SCIENCES_or_I. MATHEMATICS AND COMPUTER SCIENCEauthor: Spyropoulos, Vasileios_or_Papaioannou, Angelos_or_Kapreli, Eleni_or_Fountzoula, Christina_or_Kroupis, Christos_or_Sakellari, Evanthia_or_Velonaki, Venetia Sofia_or_Plageras, Panagiotis_or_Σπυρόπουλος, Βασίλειος__eltype: 1