1982-7806 1982-7806 S1982-78062016000100299 doi.org/10.14393/che-v15n1-2016-12 Brazil 00 04 2016 00 04 2016 15 1 299 322

2 2 1 1 219 187-87 13 25/26 25/26 23 1-2 1-2 13-22