2631-2581
2631-2581
S2631-25812019000200083
Ecuador
Ecuador
Ecuador
Ecuador
Ecuador
00
08
2019
00
08
2019
28
2
83
91
[
2007
]
[
2008
]
[
2015
]
[
2008
]
[
2002
]
[
2007
]
[
2002
]
[
2015
181-92
]
[
2019
26
1
1
4-23
]
[
2011
17
1
1
7-13
]
[
1973
]
[
1984
]
[
1980
]
[
2019
12
1
1
118-28
]
[
2013
1
2
2
47-55
]
[
1947
]
[
2014
7
4
4
435-41
]
[
2017
54
9
9
1004-18
]
[
2003
41
3-4
3-4
159-90
]
[
2019
54
1
1
1-7
]
[
1966
]
[
2018
5
1
1
1-8
]
[
2005
35-41
]
[
2018
11
2
2
81-99
]
[
2016
122
3
3
757-76
]
[
1998
13
8
8
663-82
]
[
2017
40
1
1
1-16
]
[
1990
]
[
1981
]
[
2018
11
2
2
28-41
]
[
2012
14
2
2
31-6
]
[
2017
38
3
3
195-203
]
[
1999
9
2
2
63-9
]
[
1991
]
[
2015
17
1
1
141-62
]
[
2014
4
60-71
]
[
2012
54
6
6
357-66
]
[
1994
]
[
2012
1
2
2
1-20
]
[
1982
17
281-97
]