0100-3143 0100-3143 S0100-31432019000100605 10.1590/2175-623677588 Brazil 00 01 2019 00 01 2019 44 1 e77588

11 139-60 2015 Aracaju 19 2 2 481-98 7 2 2 71-7 NATIONAL RESEARCH COUNCIL NATIONAL RESEARCH COUNCIL 77-91