1990-8644
1990-8644
S1990-86442021000200055
Ecuador
Cuba
Ecuador
00
04
2021
00
04
2021
17
79
55
61
[
2018
1
1
1
18-27
]
[
2017
6
1
1
84-9
]
[
2015
33
2
2
9-27
]
[
2017
9-17
]
[
2018
1
1
1
38-48
]
[
2017
23
29-36
]
[
2020
16
74
74
45-53
]
[
2016
1
33
33
18-31
]
[
2014
24
24
97-118
]
[
2018
39
25
25
]
[
2019
11
5
5
437-46
]
[
2016
4
6
6
1288-97
]
[
2016
45
117-20
]
[
2017
15
2
2
57-75
]
[
2018
39
53
53
]
[
2016
18
2
2
1-14
]
[
2018
39
52
52
]