1816-8949
1816-8949
S1816-89492021000300033
10.18004/anales/2021.054.03.33
Paraguay
Paraguay
Paraguay
Paraguay
Paraguay
Paraguay
00
12
2021
00
12
2021
54
3
33
40
[
2019
8
6
6
3120-30
]
[
2021
.
140
111717
]
[
2010
51
71-119
]
[
2010
103
12
12
1765-72
]
[
2010
316
1083-100
]
[
2011
15
2011
2011
219309
]
[
2009
16
6
6
554-61
]
[
2009
101
19
19
1308-24
]
[
2019
10
3722
3722
]
[
2020
13
12601-13
]
[
2013
Volumen 24
Número 24
Número 24
páginas 412-9
]