[1] Univ Cattolica Sacro Cuore, Cardiol Dept, Rome, Italy
[2] Univ Rome Sapienza, S Andrea Hosp, Dept Clin & Mol Med, Cardiol Dept,Sch Med 2, Rome, Italy
[3] Univ Barcelona, Hosp Clin, Thorax Inst, Barcelona, Spain
[4] Zagazig Univ, Cardiol Dept, Zagazig, Egypt