0379-3982 0379-3982 S0379-39822017000100003 10.18845/tm.v30i1.3060 Costa Rica Costa Rica Costa Rica Costa Rica Costa Rica Costa Rica Costa Rica Costa Rica 00 03 2017 00 03 2017 30 1 3 13

[1] 2014 [2] 2009 10 1 1 33-42 [3] 1992 339 1523-6 [4] 2010 [5] 2000 52 673-839 [6] 2010 21 332-44 2008 99 782-792. [8] 2008 7 3 3 1089-99 [9] 2010 36 3 3 159-68 [10] 2015 20 22703-17 [11] 2007 100 1182-7 [12] 2008 13 11-4 [13] 1998 62 7 7 1284-9 [14] 2012 6 [15] 2002 50 1643-6 [16] 2009 113 185-90 [17] 2002 13 87-94 [18] 2010 35 92-101 [19] 2003 51 5780-5 [20] 2007 45 1-10 [21] 1965 16 144-58