2550-6722
2550-6722
S2550-67222021000300031
10.37135/chk.002.15.02
Ecuador
Ecuador
00
12
2021
00
12
2021
15
31
46
[
2019
19
2
2
]
[
2010
]
[
2009
2
3
3
219-45
]
[
2019
24
86
86
198-210
]
[
2005
43
1
1
55-98
]
[
2017
13
]
[
2019
2
4
4
168-85
]
[
1982
359
]
[
1996
9
4
4
1097
]
[
2015
15
1
1
67-72
]
[
2003
]
[
1986
50
5
]
[
2003
79
5
5
2741
]
[
2016
44
165
]
[
1991
]
[
1987
27-46
]
[
1991
5
1
1
193
]
[
2017
]
[
2018
21
1
1
13-34
]
[
2000
15
4
4
596
]
[
2006
120
17
]
[
1991
53
3
3
720
]
[
2017
241
]
[
2017
40
5
5
227
]
[
2020
64
1-11
]
[
2017
38
13
13
]
[
2019
29
53
53
]
[
2006
25
2
2
227
]
[
2016
9
2
2
]
[
1993
]
[
1999
58
4
4
233
]
[
2012
79
314
314
449
]
[
2019
13
1-2
1-2
117
]
[
2017
225
1
1
31
]
[
2010
2
]
[
1955
69
1
1
99
]
[
1976
]
[
2017
]
[
1975
32
3
3
439
]
[
2015
]
[
1973
5
2
2
207-32
]
[
1974
185
4157
4157
1124
]
[
1960
12
3
3
129
]
[
2018
37
2
2
213
]