[1] PROCAPE, Div Cardiovasc Surg Pronto Socorro Cardiol Pernam, Av Eng Domingos Ferreira 4172,Edf Paqueta,Apt 405, BR-51021040 Recife, PE, Brazil
[2] Univ Pernambuco, UPE, Recife, PE, Brazil
[3] FCM ICB, Fac Med Sci, Nucleus Postgrad & Res Hlth Sci, Recife, PE, Brazil
[4] FCM ICB, Biol Sci Inst, Recife, PE, Brazil
[5] Univ Laval, Inst Univ Cardiol & Pneumol Quebec, Quebec Heart & Lung Inst, 2725 Chemin St Foy,A-2075, Quebec City, PQ G1V 4G5, Canada
[6] Sapienza Univ Rome, Dept Med Surg Sci & Biotechnol, Latina, Italy
[7] Mediterranea Cardioctr, Naples, Italy
[8] Univ Duisburg Essen, Univ Hosp Essen, West German Heart & Vasc Ctr Essen, Dept Thorac & Cardiovasc Surg, Essen, Germany