0034-7744
0034-7744
S0034-77442019000100182
10.15517/rbt.v67i1.32940
Ecuador
Ecuador
00
03
2019
00
03
2019
67
1
182
195
[
2007
2007
1-17
]
[
2015
10
5
5
]
[
2011
19
3
3
379-89
]
[
2005
92
342
342
61-83
]
[
2011
59
3
3
1071-9
]
[
2012
270
153-62
]
[
2006
104
2
2
65-77
]
[
1999
47
4
4
775-84
]
[
2014
37
6
6
609-13
]
[
2008
23
2
2
104-12
]
[
2012
28
5
5
463-81
]
[
2006
17
1
1
83-92
]
[
2017
]
[
2010
1
1
1
73-5
]
[
1982
32
1
1
21-31
]
[
2002
16
4-5
4-5
245-9
]
[
2007
39
1
1
25-30
]
[
2014
7
1-2
1-2
161-71
]
[
2009
258
2
2
81-91
]
[
2007
126
1
1
67-75
]
[
1997
99
1
1
153-62
]
[
2002
155
1
1
81-95
]
[
1967
]
[
2010
42
2
2
140-8
]
[
2017
38
1
1
141-54
]
[
1999
75
]
[
2015
141
8
8
848-53
]
[
1998
391
6662
6662
72
]
[
2005
212
1
1
358-66
]
[
2010
1
1
1
88-99
]
[
2000
15
278-85
]
[
2017
7
1
1
77-88
]
[
2015
216
6
6
775-87
]
[
2017
48
5
5
643-62
]
[
2007
]
[
1997
]
[
2017
8
12
12
473
]
[
2011
26
7
7
340-8
]
[
2015
23
6
6
918-26
]
[
2006
233
2-3
2-3
366-74
]
[
2002
125
769-87
]
[
2004
188
1
1
17-24
]