[1] Fatebenefratelli Hosp, Div Cardiol, Benevento, Italy
[2] Univ Clin, Cardiol, St Pertersburg, Russia
[3] SAN LUCA Hosp, Cardiol Dept, Lucca, Italy
[4] Bieganski Hosp, Cardiol Dept, Lodz, Poland
[5] Sch Med Katowice, Med Univ Silesia, Cardiol, Katowice, Poland
[6] Univ Belgrade, Clin Ctr Serbia, Cardiol, Belgrade, Serbia
[7] Univ Belgrade, Sch Med, Cardiol, Belgrade, Serbia
[8] Russian Acad Sci, Tomsk Natl Res Med Ctr, Cardiol, Tomsk, Russia
[9] Univ Parma, Cardiol, Parma, Italy
[10] Dolo Hosp, Cardiol, Dolo, Italy
[11] Med Univ Pleven, Cardiol, Pleven, Bulgaria
[12] Azienda Osped Univ, Cardiol, Modena, Italy
[13] Univ Hosp Pisa, Cardiol, Pisa, Italy
[14] Mayo Clin, Cardiovasc Med, Rochester, MN USA
[15] CNR, Biomed, Pisa, Italy