0376-7892
0376-7892
S0376-78922022000100049
10.4321/s0376-78922022000100007
El Salvador
El Salvador
00
03
2022
00
03
2022
48
1
49
58
[
1991
]
[
1979
2
508-10
]
[
1983
Switzerland
]
[
1989
83
488-93
]
[
1991
18
829-55
]
[
1991
27
5
5
429-38
]
[
2000
24
141-7
]
[
2002
26
490-2
]
[
2003
27
135-8
]
[
2005
116
1
1
295-305
]
[
2006
117
817-26
]
[
2007
33
3
3
171-5
]
[
2019
43
973-9
]
[
2012
36
261-70
]
[
1999
23
134-8
]
[
2012
36
4
4
803-12
]
[
2017
41
5
5
1115-31
]