1409-0015 1409-0015 S1409-00152017000100202 Costa Rica 00 03 2017 00 03 2017 34 1 202 207

1 2014 32 2 2006 16 1 1 64-9 3 2008 4 2 2 4 2005 31 2 2 67-85 5 2009 6 6 2011 , 25 5 7 2003 46 4 4 8 2009 9 2007 10 11 2000 12 2012 13 1 1 64-70