1688-0420 1688-0420 S1688-04202019000200037 10.29277/cardio.34.2.5 Uruguay 00 08 2019 00 08 2019 34 2 37 50 1 2013 577 2 2018 3 1939 4 2017 5 2006 6 1981 7 1974 8 1992 9 2009 25 1 1 59-68