2631-2581
2631-2581
S2631-25812017000200226
Ecuador
00
12
2017
00
12
2017
26
3
226
234
[
2011
12
231
]
[
2017
]
[
2017
26
164-78
]
[
1999
14
341-6
]
[
1984
52
885
]
[
1989
3
129-36
]
[
1989
28
267-73
]
[
2002
8
847-54
]
[
1998
54
577-84
]
[
1999
447-81
]
[
2001
2
717-26
]
[
1978
14
234-44
]
[
1997
53
713-22
]
[
1992
8
137-41
]
[
1987
26
313-4
]
[
1997
33
343-56
]
[
2011
128
175-6
]
[
2015
22
252-61
]
[
2012
]
[
2013
20
249-56
]
[
2016
5
178-85
]
[
2000
1-21
]
[
1975
12
189-98
]
[
NORMACOsM Group
2001
39
1150-7
]
[
2006
12
391-9
]
[
2006
60
332-9
]
[
1991
27
367-76
]
[
2008
20
309-16
]
[
2011
132
220-7
]
[
2013
28
344-8
]
[
2012
7
e46841
]
[
2013
17
502-9
]
[
2006
36
1053-64
]
[
1985
142
538-46
]
[
2012
44
9-15
]
[
2012
124
181-4
]