1683-9803
1683-9803
S1683-98032018000300199
10.31698/ped.45032018001
Paraguay
00
12
2018
00
12
2018
45
3
199
200
[
2018
31
1
1
38-46
]
[
2017
17
4
4
35-41
]
[
2014
18
5
5
606-12
]
[
2017
21
12
12
9
]
[
2017
13
1
1
91-104
]
[
2016
20
4
4
426-32
]
[
2016
29
1
1
14-21
]
[
2015
14
28
28
161-89
]