0100-3143 0100-3143 S0100-31432018000401515 10.1590/2175-623675528 Brazil 00 10 2018 00 10 2018 43 4 1515 1535

25 2 2 373-90 52-75 16 16 114-23 1 1 85-102 26 1 1 44-52