2238-0094 2238-0094 S2238-00942017000200069 10.4025/rbhe.v17n2.854 Brazil 00 04 2017 00 04 2017 17 2 69 95

19 48 48 69-88 6 12 12 14-24 22 3 3 51-66 14 1 1 135-59 3 5 5 4-17 14 2 2 37-43