1659-0775
1659-0775
S1659-07752021000200017
Ecuador
Ecuador
Ecuador
Ecuador
00
12
2021
00
12
2021
35
17
28
[
2014
1
4
4
106-11
]
[
2019
8
22
22
873-7
]
[
2014
20
4
4
221
]
[
2012
6
2
2
157-61
]
[
2015
29
1
1
591-6
]
[
2016
20
4
4
741-56
]
[
2019
]
[
2016
15
1
1
101-12
]
[
2012
5
3
3
127-30
]
[
2013
17
2
2
69-77
]
[
2018
8
1
1
66-74
]
[
2016
37
2
2
132-3
]
[
2009
13
1
1
158-67
]
[
2014
8
2
2
299-307
]
[
2016
43
9
9
812-824.
]
[
2017
8
4
4
538-44
]
[
2017
86
708
708
13-9
]
[
2019
23
7
7
322-9
]
[
2003
8
131-41
]
[
2010
14
1
1
1-10
]
[
2019
45
3
3
1-6
]
[
2007
9
1
1
]
[
2016
20
4
4
465-71
]
[
2012
3
116-24
]
[
2016
]
[
2018
22
1
1
1-3
]
[
2013
]
[
2012
22
1
1
42
]
[
2010
20
2
2
107
]
[
2014
5
4
4
507-13
]
[
2017
56
265
265
]
[
2019
11
279-284.
]
[
2015
2
9
9
157-64
]
[
2016
]
[
2018
1
226-92
]
[
2014
10
18
18
21-8
]
[
2015
31
1
1
1-8
]
[
2018
]
[
2019
103-9
]
[
2012
16
5
5
1-9
]
[
2014
8
2
2
191-9
]
[
2017
11
4
4
405-10
]
[
2012
4
1317-5823
]