1816-8949
1816-8949
S1816-89492021000300151
10.18004/anales/2021.054.03.151
Paraguay
Paraguay
00
12
2021
00
12
2021
54
3
151
154
[
2016
132
15
15
1435-86
]
[
2010
14
1
1
]
[
2020
12
1
1
42-54
]
[
2015
32
4
4
430-4
]
[
2016
1
3
3
3-6
]
[
2014
57
4
4
43-9
]
[
2018
3
1
1
39-40
]
[
2016
6
3
3
29-33
]
[
2019
18
2
2
107-12
]
[
2007
24
9
9
439-41
]