0102-5473 0102-5473 S0102-54732017000300722 10.5007/2175-795X.2017v35n3p722 Brazil Brazil 00 09 2017 00 09 2017 35 3 722 737

8 2 2 176-89 54 54 7 1 1 26-43 12 34 34 152-80 23 61 61 267-81