2177-6059 2177-6059 S2177-60592020000100301 10.18593/r.v45i0.24849 Brazil Brazil 00 01 2020 00 01 2020 45 2020 45 1-22 2020 45 1-22 2020 45 1-24 2020 45 1-16 2020 45 1-18 2020 45 1-22 2020 45 1-18 2020 45 1-24 2020 45 1-24 2020 45 1-26 2020 45 1-6