1817-5996
1817-5996
S1817-59962021000200007
Ecuador
Ecuador
Ecuador
Ecuador
00
08
2021
00
08
2021
23
2
[
2003
107
1303-7
]
[
2007
93
10
10
1263-7
]
[
2010
103
4
4
253-61
]
[
2011
22
4
4
296-301
]
[
2006
19
943-54
]
[
1997
146
6
6
483-94
]
[
2011
70
3
3
508-11
]
[
2009
2
1
1
1-7
]
[
2005
52
8
8
2293-9
]
[
2009
73
6
6
977-85
]
[
2003
72
25
25
2877-85
]
[
2011
70
9
9
1550-5
]
[
2010
37
3
3
529-35
]
[
2010
29
11
11
1237-43
]
[
2012
4
916-31
]
[
2005
352
11
11
1092-102
]
[
2008
59
4
4
568-74
]
[
2009
68
5
5
668-73
]
[
2006
45
9
9
1058-61
]
[
2007
34
2
2
316-21
]
[
2000
355
9215
9215
1616-7
]
[
2012
17
2
2
101-7
]
[
2009
5
12
12
677-84
]
[
2012
71
6
6
862-8
]
[
2010
1193
]
[
2008
26
2
2
311-6
]
[
2002
106
17
17
2184-7
]
[
2010
9
12
12
835-9
]
[
2005
4
3
3
53-161
]
[
2009
28
6
6
705-10
]