1409-1429
1409-1429
S1409-14292015000200136
Costa Rica
Costa Rica
00
12
2015
00
12
2015
24
2
136
142
[
OMS/TDR
2009
3-22
]
[
2012
21
1
1
15-8
]
[
2010
197-217
]
[
OMS/TDR
2009
1
57-90
]
[
2012
21
2
2
81-6
]
[
2009
61
2
2
1-10
]
[
2009
20
1
1
15-23
]
[
2006
19
6
6
379-38
]
[
2005
57
2
2
159-61
]
[
2003
12
23
23
22-30
]
[
2004
59
3-4
3-4
132-6
]
[
1991
7
400-4
]
[
2007
21
55-63
]