0123-885X
0123-885X
S0123-885X2019000300002
10.7440/res69.2019.01
Ecuador
Colombia
00
07
2019
00
07
2019
69
2
13
[
2015
]
[
2016
]
[
2005
153-72
]
[
2007
]
[
2006
]
[
2008
]
[
2001
201-51
]
[
2010
12
47-72
]
[
1992
]
[
1999
147-61
]
[
2000
41-53
]
[
2010
]
[
2006
]
[
1973
]
[
2007
]
[
2000
]
[
2000
]
[
2012
16
79-102
]
[
2003
]
[
2005
3-40
]
[
2014
15
1
1
67-83
]
[
1975
]
[
2007
127-68
]
[
1972
]
[
2005
]
[
1995
]
[
2001
]
[
2003
]
[
2007
]
[
2013
74
7-23
]
[
1988
]
[
1994
]
[
1978
]
[
2006
]
[
2018
20
39
39
85-107
]
[
2018
57
191-210
]
[
1992
437-49
]
[
1968
]
[
2010
]
[
1985
]
[
2011
16
54
54
17-39
]
[
2000
]
[
1995
]
[
1996
]
[
2007
]
[
1994
]