1517-9702 1517-9702 S1517-97022015000200409 10.1590/S1517-97022015041789 Brasil 00 04 2015 00 04 2015 41 2 409 426

253-94 37 131 131 399-422 1 02 A 05 JUL. 2013 SÃO PAULO 28 28 125-40 28 100 100 1105-128 91-110 25 87 87 383-99 1 21 21 97-112 2 1 1 55-71 9 1-12