1982-7806 1982-7806 S1982-78062016000300008 10.14393/che-v15n3-2016-7 Brazil Brazil 00 12 2016 00 12 2016 15 3 1031 1054

4 8 8 141-74 4 4 35-6 2 87-106 2 579-601 4 1 1