2631-2654
2631-2654
S2631-26542020000200027
10.37135/ns.01.05.03
Ecuador
00
03
2020
00
03
2020
3
1
27
36
[
2018
1
1
1
23-32
]
[
2013
]
[
2019
2
1
1
15-23
]
[
2015
]
[
2018
]
[
2018
]
[
2015
]
[
2013
]
[
2006
4
2
2
271-6
]
[
2019
]
[
2013
8
8
8
]
[
2012
50
6-9
]
[
2019
]
[
2015
27
53
53
7-114
]
[
2004
]
[
2014
]
[
2005
72
2
2
367-90
]
[
2017
86
153-78
]
[
2018
]
[
2014
]
[
2016
]
[
2013
]
[
2017
78
282
282
257
]
[
2009
188
61-79
]
[
2015
]
[
2014
]
[
2018
10
9
9
1-10
]
[
2014
5
9
9
2929-45
]
[
2015
]
[
2017
148
773-84
]
[
2015
]
[
2018
3
1859-67
]
[
2009
]
[
2016
9
1
1
120-38
]