[1] CNR, Inst Clin Physiol, Lab Thromb & Vasc Res, I-56100 Pisa, Italy
[2] Univ Siena, Dept Pathol, I-53100 Siena, Italy
[3] Aalborg Hosp, Dept Prevent Cardiol, Aarhus, Denmark
[4] Aalborg Hosp, Dept Nephrol, Aarhus, Denmark
[5] Univ G dAnnunzio, Univ Cardiol Div, Chieti, Italy