1982-7806 1982-7806 S1982-78062017000100064 10.14393/che-v16n1-2017-6 Brazil 00 04 2017 00 04 2017 16 1 64 88

40 24-48 10 2 2 45-67 19 19 113-28 2 2 177-229 12 1 1 143-69 11 3 (27 3 (27 13-45