1990-8644
1990-8644
S1990-86442020000500123
Cuba
Ecuador
00
10
2020
00
10
2020
16
76
123
134
[
2016
25
3
3
143-54
]
[
2006
]
[
2012
]
[
1897
]
[
2015
18
5
5
511-25
]
[
2016
]
[
2015
13
25
25
37-74
]
[
1987
]
[
2018
]
[
2017
15
30
30
153-80
]
[
2017
98
365
365
71-6
]
[
2008
6
12
12
117-33
]
[
2017
15
30
30
181-222
]
[
2017
15
30
30
181-222
]
[
2012
10
20
20
187-206
]
[
2014
]
[
2019
20
4
4
570-89
]
[
2017
39
2
2
47-51
]