1560-4381
1560-4381
S1560-43812019000301013
Ecuador
00
09
2019
00
09
2019
23
3
1013
1019
[
2016
107
9
9
791-3
]
[
2018
27
4
4
244-55
]
[
2019
53
1
1
1-24
]
[
2018
93
2
2
242-50
]
[
2018
65
4
4
400-13
]
[
2018
15
6
6
1108
]
[
2018
29
4
4
179-86
]
[
2018
17
4
4
269-77
]
[
2016
74
6
6
1029-40
]
[
2017
39
1
1
47-54
]