Adherence to Mediterranean diet; not olive oil consumption alone predicts hypercholesterolemia in elderly: the MEDIS study oleh E. Georgousopoulou, N. Naumovski, D.D. Mellor, S. Piscopo, G. Valacchi, S. Tyrovolas, V. Bountziouka, D. Panagiotakos, J.A. Tur, E. Polychronopoulos