1812-9528 1812-9528 S1812-95282017000100048 10.18004/mem.iics/1812-9528/2017.015(01)48-056 Paraguay Paraguay 00 04 2017 00 04 2017 15 1 48 56

2011 8 2 2 9-22 2007 143 2 2 141-8 2001 17 4 4 316-20 2007 45 1 1 21-8 2011 2006 36 4 4 132-7 2011 49 4 4 331-7 2012 2010 94 5 5 552-61 2013 29 1 1 64-73 2011 2011 72 1 1 11-6 2006 9 62 62 4049-51 4 4 59-68 2011 1949-58 1993 De la Rosa-Morales V 2000 8 2 2 87-90 2015 2 2 2 63-9 2011 1 2 2 1-11 2012 7 3 3 1-14 2000 2007 49 ^s4 ^s4 4 S459-66 2002 21 49-54 2010 12 4 4 116-26