1816-8949
1816-8949
S1816-89492021000200097
10.18004/anales/2021.054.02.97
Paraguay
00
08
2021
00
08
2021
54
2
97
102
[
2015
15-22
]
[
2014
36
4
4
218-24
]
[
2020
43
3
3
155-68
]
[
2015
337-58
]
[
1999
vol. 51
no 6
no 6
615-22
]
[
2012
Vol 79
9-13
]
[
2018
20
Suppl 3
Suppl 3
5-31
]
[
2009
Volume 52
Issue 2
Issue 2
217-21
]
[
2008
vol. 84
no 6
no 6
323-7
]
[
2000
vol. 52
no 5
no 5
511-8
]
[
2012
59
2
2
9-13
]