1990-8644
1990-8644
S1990-86442021000600021
Ecuador
00
12
2021
00
12
2021
17
83
21
25
[
2002
35
1
1
1-9
]
[
2020
268-74
]
[
2020
9
01
01
569-75
]
[
2020
102
564-76
]
[
2021
44
357-66
]
[
2017
48
48
233-59
]
[
2006
20
127-34
]
[
2020
32
1
1
344-60
]
[
2017
38
2
2
170-8
]
[
2021
772
]
[
2017
50
356-66
]
[
2010
España
]
[
2018
22
]
[
2017
138
1-11
]
[
2019
52
206-12
]