1982-7806 1982-7806 S1982-78062017000300619 10.14393/che-v16n3-2017-4 Brazil Brazil Brazil 00 12 2017 00 12 2017 16 3 619 639

7 7 8-15 29 29 43-70 28 28 50-62 2 1 1 36-59 1 1 131-42