1727-897X
1727-897X
S1727-897X2020000500780
Ecuador
Cuba
00
10
2020
00
10
2020
18
5
780
788
[
2014
30
131
131
36
]
[
2017
]
[
2007
]
[
2013
13
2
2
40
]
[
2012
]
[
2019
4
48
48
18
]
[
2015
]
[
2017
8
15
15
43
]
[
2020
18
1
1
5
]
[
2012
34
5
5
6
]
[
2010
]
[
2019
]
[
2019
48
^s2
^s2
2
10
]
[
2007
8va
]
[
2019
21
36
36
23
]
[
2015
]
[
2004
7ma
]
[
2019
19
2
2
23
]