[1] CNR, Inst Clin Physiol, Pisa, Italy
[2] Scuola Super Sant Anna, Inst Life Sci, St Anna Sch Adv Studies, Pisa, Italy
[3] Osped Niguarda Ca Granda, Dept Cardiac Surg, Milan, Italy
[4] Univ Hosp Pisa, Dept Pathol, Pisa, Italy
[5] Univ Siena, Pisa, Italy