2236-3459 2236-3459 S2236-34592019000100701 10.1590/2236-3459/84503 Brazil 00 00 2019 00 00 2019 23 2004 1996 1994 2003 2005 2 2009 1 2 49-69 2011 1 1 159-95 2016 1 1 91-116 2018 1 1 409-32 2015 2002 20 2 2 493-512 2004