1990-8644
1990-8644
S1990-86442020000300180
Ecuador
Cuba
00
06
2020
00
06
2020
16
74
180
185
[
2019
2
1
1
62-70
]
[
2017
9
1
1
81-6
]
[
2019
2
166-73
]
[
2017
9
4
4
97-105
]
[
2017
9
1
1
120-8
]
[
2017
9
1
1
60-5
]
[
2016
12
53
53
14-8
]
[
2017
13
1
1
92-100
]
[
2014
7
1E
1E
74-9
]
[
2019
15
69
69
79-88
]
[
2019
15
68
68
7-13
]
[
2017
13
1
1
30-6
]