1560-4381
1560-4381
S1560-43812020000200683
Ecuador
Ecuador
Ecuador
00
06
2020
00
06
2020
24
2
683
701
[
2019
34
3
3
208-38
]
[
2020
41
99-109
]
[
2019
12
2041-52
]
[
2018
16
1
1
35-46
]
[
2017
7
3
3
155-67
]
[
2016
18
1^s2
1^s2
2
28-33
]
[
2019
3
8
8
1595-607
]
[
2019
116
49
49
825-32
]
[
2018
43
10
10
22-9
]
[
1967
276
5
5
273-81
]
[
2018
30
5
5
217-23
]
[
2019
3
12
12
2397-410
]
[
2019
15
533-8
]
[
2019
7
]
[
2016
12
19
19
1107-10
]
[
2011
123
2292-333
]
[
2017
23
^s2
^s2
2
1-87
]
[
2015
9
2
2
129-69
]
[
2012
97
9
9
2969-89
]
[
2018
]
[
2019
11
8
8
1865
]
[
2019
11
2506
]
[
2012
44
7
7
387-93
]
[
2015
19
3
3
]
[
2019
18
84
]
[
2019
8
]
[
2019
8
7
7
2249-57
]
[
2017
9
2
2
76-91
]
[
2019
2019
]
[
2019
8
1085
1085
]
[
2020
20
1
1
36-42
]
[
2019
14
19-30
]