2307-3349
2307-3349
S2307-33492018000100040
10.18004/rspp.2018.junio.40-43
Paraguay
00
06
2018
00
06
2018
8
1
40
43
[
2008
39
1
1
]
[
2015
57
4
4
233-6
]
[
2014
79
2
2
121-8
]
[
2008
75
4
4
241-6
]
[
2011
79
1
1
18-23
]
[
2008
19
1
1
0
]
[
2012
23
3
3
227-35
]
[
2016
]
[
2014
]
[
2008
50
6
6
530-47
]
[
2015
]
[
2007
18:85
]
[
1988
37
1595-607
]
[
2001
285
285
2486-97
]
[
2006
29
11
11
2471-6
]
[
1998
15
7
7
539-53
]
[
2005
366
1059-62
]
[
2006
]