1665-5346
1665-5346
S1665-53462021000100001
10.21919/remef.v16i1.581
USA
Mexico
00
03
2021
00
03
2021
16
1
[
2009
19
2
2
556-84
]
[
1953
11
41-7
]
[
1985
40
1
1
155-73
]
[
2004
49
3
3
442-7
]
[
2011
]
[
2020
21
2
2
610-26
]
[
1992
48
5
5
28-43
]
[
1990
]
[
2002
March 2002
March 2002
77-83
]
[
2006
63
1
1
151-68
]
[
2001
20
2
2
191-218
]
[
2004
28
10
10
2055-74
]
[
2015
]
[
2010
27
3
3
678-86
]
[
2010
176
1
1
271-91
]
[
2012
]
[
2002
5
4
4
385-99
]
[
1965
64
1
1
34-105
]
[
2012
2012-06
2012-06
]
[
2013
85
2
2
272-85
]
[
2014
45
1
1
69-88
]
[
2001
10
2
2
259-90
]
[
1990
45
1-2
1-2
39-70
]
[
1979
20
3
3
381-408
]
[
2003
6
1
1
1-32
]
[
2003
6
4
4
519-36
]
[
1990
22
1
1
287-310
]
[
1968
23
2
2
389-416
]
[
1969
42
2
2
167-247
]
[
2012
25
9
9
2877-919
]
[
2005
37
3
3
585-98
]
[
1965
47
1
1
13-37
]
[
2005
18
1
1
131-64
]
[
1968
10
4
4
422-37
]
[
2020
23
2
2
427-39
]
[
1952
7
1
1
77-91
]
[
1975
42
3
3
375-93
]
[
2006
18
1
1
15-24
]
[
1973
4
1
1
141-83
]
[
1971
3
4
4
373-413
]
[
1969
51
3
3
248-57
]
[
1999
]
[
2002
]
[
2004
Spring 2004
Spring 2004
2-3
]
[
1958
48
3
3
261-97
]
[
1966
34
4
4
768-83
]
[
1986
21
4
4
437-46
]
[
2005
42
2
2
362-78
]
[
2020
]
[
1969
4
271-89
]
[
2008
]
[
1965
6
2
2
41-9
]
[
2004
8
4
4
553-77
]
[
2004
8
4
4
553-77
]
[
1964
19
3
3
425-42
]
[
1963
9
2
2
277-93
]
[
1964
19
3
3
425-42
]
[
1966
39
3
3
119-38
]
[
2015
35
4
4
2074-84
]
[
2009
19
2
2
251-79
]
[
2002
280
]
[
2011
35
131-56
]
[
1958
25
2
2
65-86
]
[
1965
43
1
1
63-75
]
[
2017
37
1
1
314-26
]
[
2015
104
2
2
53-362
]
[
2000
111
20-7
]
[
2016
20
34
34
83-105
]
[
2010
230
9-24
]
[
2001
16
32
32
203-26
]
[
2008
2da
]
[
2000
9
2
2
227-44
]
[
2001
25
9
9
1429-49
]
[
2006
23
1
1
157-73
]
[
2009
6
2
2
237-57
]
[
2011
24
1
1
140-55
]
[
2014
21
4
4
317-30
]
[
2001
5
1
1
61-82
]
[
1999
50
2
2
271-96
]
[
1992
30
3
3
613-36
]
[
2004
121
2
2
419-44
]
[
2014
42
4
4
1466-82
]