Comparison of four definitions of the metabolic syndrome in a Greek (Mediterranean) population - Athyros, V G; Ganotakis, E S; Tziomalos, K; Papageorgiou, A A; Anagnostis, P; Griva, T; Kargiotis, K; Mitsiou, E K; Karagiannis, A; Mikhailidis, D P (Curr Med Res Opin, 2010)