1405-5546
1405-5546
S1405-55462018000200639
10.13053/cys-22-2-2557
Ecuador
Ecuador
00
06
2018
00
06
2018
22
2
639
656
[
2013
433
]
[
2006
10
4
4
459-72
]
[
2013
237
0
0
82-117
]
[
1999
3
1875-82
]
[
2015
105
134-45
]
[
2012
34
4
4
885-919
]
[
2005
3
2
2
87-107
]
[
2011
15
7
7
1427-48
]
[
2012
218
1
1
7-20
]
[
2009
15
617-44
]
[
1992
13
5
5
1194-217
]
[
1985
32
2
2
146-64
]
[
2005
9
3
3
303-17
]
[
2006
7
2
2
201-19
]
[
2013
482
95-114
]
[
2015
296
0
0
95-118
]
[
2008
]
[
2012
44
2
2
195-207
]
[
2013
482
69-93
]
[
2007
54
19-46
]
[
2012
6
0
0
1-24
]
[
2013
17
10
10
1861-81
]
[
2015
2015
1-12
]
[
2016
8
1
1
1-13
]
[
2002
322-7
]
[
2014
]
[
2014
41
0
0
374-85
]
[
1997
11
4
4
341-59
]
[
2006
21
5
5
321-33
]
[
2013
482
1-39
]