2238-0094 2238-0094 S2238-00942017000300043 10.4025/rbhe.v17n3.922 Brazil 00 09 2017 00 09 2017 17 3 43 67

113-31 48 3 3 655-80 9-37 20 57 57 31-2 97-118 53 2 2 299-335 8 1 1 3-53 5 4 4 20 1 1 189-206 1a