1816-8949
1816-8949
S1816-89492022000300133
10.18004/anales/2022.055.03.133
Paraguay
Paraguay
00
12
2022
00
12
2022
55
3
133
137
[
2017
5
1
1
]
[
2021
28
6
6
491-5
]
[
2018
12
1
1
371
]
[
2002
19
4
4
323-5
]
[
1995
13
3
3
245-55
]
[
2020
vol.12
n.2
n.2
16-27
]
[
2015
vol.17
no.1
no.1
]
[
OMS
2006
]
[
2020
44
]
[
MSPBS
2018
]
[
2022
]