MARATHON RUNNERS HAVE INCREASED AORTIC STIFFNESS - Kardara, Despina; Vlachopoulos, Charalambos; Anastasakis, Aris; Baou, Katerina; Terentes-Printzios, Dimitrios; Dima, Ioanna; Antoniou, Georgios; Gravos, Athanasios; Stefanadis, Christodoulos (Journal of the American College of Cardiology (JACC), 2010)