1409-4142
1409-4142
S1409-41422020000200005
El Salvador
Argentina
00
12
2020
00
12
2020
22
2
5
7
[
2001
24
2
2
57-62
]
[
2006
8
2
2
17-81
]
[
2010
52
5
5
]
[
1994
17
1974-9
]
[
2019
185-96
]
[
1967
22
584
584
]
[
1977
56
996
996
]
[
1982
52
6
6
483-6
]
[
2000
101
8
8
869-77
]
[
2006
59
6
6
553-8
]