1982-7806 1982-7806 S1982-78062017000100235 10.14393/che-V16n1-2017-15 Brazil Brazil 00 04 2017 00 04 2017 16 1 235 257

1 1 1 48-70 16 32 32 13-33 1 16 16 22-37 14 1 1 357-67 1 1 1 21-47