[1] Univ Sao Paulo, Med Sch Hosp, Heart Inst InCor, Sao Paulo, Brazil
[2] Hosp Israelita Albert Einstein, Sao Paulo, Brazil
[3] Fac Israelita Ciencia Saude Albert Einstein, Sch Med, Sao Paulo, Brazil
[4] Univ Sao Paulo, Univ Hosp, Ctr Clin & Epidemiol Res, Sao Paulo, Brazil
[5] Univ Sao Paulo, Sao Paulo State Canc Inst, Sao Paulo, Brazil
[6] Yale Sch Med, Ctr Outcomes Res & Evaluat, New Haven, CT USA
[7] Yale Sch Med, Sect Cardiovasc Med, New Haven, CT USA