1409-4258
1409-4258
S1409-42582021000100201
10.15359/ree.25-1.11
Cuba
Ecuador
Cuba
00
04
2021
00
04
2021
25
1
201
222
[
2014
19
19
17-31
]
[
2014
14
2
2
1-30
]
[
2001
Germany
]
[
2005
4
1
1
121-40
]
[
2018
22
2
2
1-17
]
[
2011
17
2
2
1-5
]
[
2017
32
32
73-84
]
[
1997
]
[
2019
23
1
1
1-23
]
[
2017
39
157
157
87-104
]
[
2009
]
[
2017
9
2
2
202-12
]
[
2017
31
71
71
201-18
]
[
2014
23
23
191-204
]
[
2005
14
14
112-9
]
[
2011
8
16
16
1-13
]
[
2011
5
2
2
45-60
]
[
2008
5
1
1
199-206
]
[
2014
23
23
155-70
]
[
2017
10
1
1
101-8
]
[
2006
1-30
]
[
2017
]
[
2015
27
27
154-64
]
[
2010
]
[
2020
18
3
3
29-45
]
[
1986
]
[
1999
]
[
2009
]
[
2016
,
Cuba
]
[
2015
3
1
1
7-15
]
[
2016
]
[
2013
]
[
2010
13
1
1
91-106
]
[
2017
20
49
49
205-28
]
[
2010
16
1
1
3-18
]
[
2009
,
1-11
]
[
2017
19
3
3
34-48
]
[
2012
9
1
1
24-33
]
[
1995
10
4
4
325-49
]
[
2001
12
351-84
]