1727-897X
1727-897X
S1727-897X2021000601005
Ecuador
Ecuador
Cuba
00
12
2021
00
12
2021
19
6
1005
1014
[
2020
18
1
1
]
[
2016
43
63e75
]
[
2020
10
12
12
5532-49
]
[
2019
20
16
16
4045
]
[
2020
39
97
]
[
2020
10
1
1
1-9
]
[
2020
2020
1
1
]
[
2018
46
2
2
195-205
]
[
2017
]
[
2018
9
985
]
[
2020
9
4
4
993
]
[
2020
116
9-10
9-10
1-7
]
[
2021
9
1-35
]
[
2018
25
29
]
[
2018
2018
3797214
]
[
2018
20
6
6
108
]
[
2018
28
1
1
47-68
]
[
2019
103
17
17
6919-32
]
[
2020
98
5
5
615-32
]
[
2020
234
119711
]
[
2018
10
1
1
50
]
[
2019
43
4
4
1559-74
]
[
2020
16
13
13
2283-95
]
[
2017
90
4
4
625-34
]
[
2020
24
7
7
3766-78
]
[
2019
8
4254-64
]
[
2019
96
4-12
]
[
2018
25
1
1
1234-57
]
[
2021
21
2
2
1344-51
]
[
2021
1-12
]
[
2019
9
69
]
[
2019
24
7
7
1349
]
[
2019
14
4
4
578-94
]
[
2018
1
1
1
]
[
2017
2017
8960236
]
[
2018
29
1
1
]
[
2020
116
9-10
9-10
1-7
]
[
2020
49
49
11
]