0123-9392 0123-9392 S0123-93922021000300197 10.22354/in.v25i3.948 Brazil Brazil Ecuador 00 09 2021 00 09 2021 25 3 197 199

1 2016 16 1 1 100-12 2 2018 56 ^s1 ^s1 1 S153-64 3 2015 43 3 3 371-5 4 2013 34 2 2 130-3 5 2016 60 3 3 155-60