1870-199X
1870-199X
S1870-199X2018000400206
Ecuador
00
12
2018
00
12
2018
22
4
206
213
[
2001
5
260-73
]
[
2000
5
5
5
521-31
]
[
2012
9
1
1
49-53
]
[
2009
13
3
3
171-6
]
[
2005
364-463
]
[
2011
303-22
]
[
2007
4
2
2
100-11
]
[
1996
111-24
]
[
2013
24
]
[
2003
74
12
12
1803-7
]
[
2001
21
5
5
1-44
]
[
2014
46
9
9
501-19
]
[
2016
2
1811-20
]
[
2014
]
[
1995
3
140-9
]
[
2015
69-82
]
[
1998
71-86
]
[
2015
15-55
]
[
2012
28
2
2
77-87
]
[
2008
79
9
9
1617-9
]
[
2014
24
3
3
147-54
]