0034-7744
0034-7744
S0034-77442018000200722
10.15517/rbt.v66i2.33404
Costa Rica
00
06
2018
00
06
2018
66
2
722
738
[
2016
30
1-2
1-2
49-58
]
[
2010
]
[
2005
4
4
4
647656
]
[
2015
]
[
2017
]
[
2015
83-84
37-46
]
[
2007
12
3
3
137-43
]
[
2013
53
31-8
]
[
2012
20
1
1
30-9
]
[
2010
10
4
4
149-53
]
[
2015
]
[
2016
16
1
1
]
[
2013
23
6
6
R233-4
]
[
2017
]
[
2014
104
1
1
43-9
]
[
2012
13
29-37
]
[
2017
49
765-9
]
[
2012
112
17-26
]
[
2013
22
30
30
22-5
]
[
2015
24
12
12
2953-65
]
[
2013
8
2
2
129-40
]
[
2012
97
1-5
]
[
2015
16
1
1
67-77
]
[
2015
7
1
1
109-16
]
[
2007
29
87
87
229-33
]
[
2014
11
22
22
147-15
]
[
1988
15
303-10
]
[
2013
2-18
]
[
2015
]
[
1995
33
89-100
]
[
2013
61
4
4
1619-36
]
[
2009
14
1
1
21
]
[
2010
32
3
3
257-63
]
[
2014
20
38
38
23-28.
]
[
2013
1-11
]
[
2009
91
1
1
1-7
]
[
2015
20
10
10
1-10
]
[
2013
17
1
1
175-90
]
[
2007
93
11
11
1587-95
]
[
2008
]
[
2015
]
[
2009
39
2
2
459-66
]
[
2013
17
1
1
129-46
]
[
2017
9
3
3
9928-39
]
[
2015
50
1
1
17-22
]
[
2016
54
4
4
442-9
]
[
1986
]
[
2015
20
4-28
]
[
2000
3
41-7
]
[
2015
18
2
2
503-11
]
[
2009
24
12
12
659-69
]
[
2008
72
7
7
1550-7
]
[
2016
40
156
156
484-93
]
[
2015
11
2
2
247-52
]
[
2016
57
3
3
377-88
]
[
2015
]
[
1996
5
2
2
154-6
]
[
2016
80
3
3
598-608
]
[
2013
5
1
1
158-64
]
[
2013
6
2
2
196-8
]
[
2007
]
[
1987
]
[
2005
22
1
1
191-6
]
[
2013
17
1
1
20-35
]
[
2012
5
99-105
]
[
2006
]
[
2011
3
1
1
81-4
]
[
2016
8
9
9
9182-9
]
[
2008
]
[
2013
11
12-6
]
[
2012
25
1
1
73-9
]
[
2017
15
1
1
56-60
]
[
2016
11
11
11
]
[
1995
273
5
5
408-12
]
[
2008
]
[
2014
7
3
3
561-71
]
[
2012
4
14
14
363-5
]
[
2017
5
1
1
622-5
]
[
2016
9
4
4
1-12
]
[
1998
7
5
5
317-33
]
[
2004
31
1
1
83-91
]
[
2013
157
317-23
]
[
2013
17
1
1
36-47
]
[
2000
14
1
1
18-30
]
[
2012
34
2
2
409-20
]
[
2001
26
253-60
]