1990-8644
1990-8644
S1990-86442020000300215
Ecuador
Cuba
00
06
2020
00
06
2020
16
74
215
224
[
2004
]
[
2018
10
2
2
141-59
]
[
2007
]
[
2002
]
[
2009
2
2
2
87-97
]
[
2005
]
[
2002
1
2
2
1-13
]
[
1994
91-103
]
[
2016
]
[
2007
16
48-57
]
[
2003
23
2
2
56-7
]
[
2010
68
24,2
24,2
83-101
]
[
2009
66
]
[
2009
]
[
2013
]
[
2013
39
103-19
]
[
2014
]
[
2006
341
705-36
]
[
2017
37
13
13
41-55
]
[
2015
3
7
7
]