2444-6483 2444-6483 S2444-64832020000600702 10.24875/end.m20000317 México 00 00 2020 00 00 2020 32 702 706

1 2020 S0016-5107(20) 2 2020 3 2020 4 2020 5 2020 6 2020 69 6 6 991-6 7 2020 52 6 6 483-90