1982-7806 1982-7806 S1982-78062018000100085 10.14393/che-v17n1-2018-6 Brazil 00 04 2018 00 04 2018 17 1 85 100

52 52 114-35 5 11 11 173-91 13 3 (33 3 (33 285-309 6 1 1 97-116 95 240 240 328-45 2 51-8 6 6 29-57