2175-3520 2175-3520 S2175-35202016000200047 10.5935/2175-3520.20160005 Brazil Brazil 00 12 2016 00 12 2016 43 47 57

11 353-64 30 91-108 3 1-14 24 73-90 30 43-56 28 91-100 6 72-88 14 261-70 13 269-89 34 127-57 26 47-66 35 95-119 21 343-52 9 525-40