0012-7353 0012-7353 S0012-73532022000200068 10.15446/dyna.v89n221.98132 Ecuador 00 06 2022 00 06 2022 89 221 68 77

[1] 2009 29 4 4 350-5 [2] 2017 [3] 2006 a 329 3-4 3-4 413-21 [4] 47 5 5 095822011 [5] 2013 515 [6] 2011 20 1 1 19-33 [7] 2013 6 1 1 21-7 [8] 2009 17 1 1 71-84 [9] 2007 251 1-2 1-2 22-30 [10] 2005 11 10 10 1565-76 [11] 2016 367-77 [12] 2004 7 7 7 729-39 [13] 2007 71 2 2 357-70 [14] 2015 48 63-75 [15] 2013 58 6 6 1198-255 [16] 1999 123 2-3 2-3 91-104 [17] 2013 18 8 8 958-75 [18] 2007 43 2 2 546-56 [19] 1998 56 56 [20] 2015 35 3 3 230-9 [21] 2012 16 9 9 3315-25 [22] 2018 10 9 9 1169 [23] 2003 [24] 2009 377 1-2 1-2 80-91 [25] 2007 50 3 3 885-900 [26] 2013 499 324-38 [27] 2005 [28] 2003 861-6 [29] 2007 935 38 [30] 2003 48 3 3 427-39 [31] 2003 [32] 2009 54 3 3 606-22 [33] 2006 b 79 1-2 1-2 53-72 [34] 1991 30 1 1 1-15 [35] 2001 37 3 3 701-8 [36] 2016 48 4 4 673-84 [37] 2003 66 1 1 55-61 [38] 1997 23 2 2 135-40 [39] 1995 170 1-4 1-4 233-54