0188-6266
0188-6266
S0188-62662016000400029
10.15174/au.2016.930
Mexico
USA
00
08
2016
00
08
2016
26
4
29
35
[
1998
115-8
]
[
2008
60
3-4
3-4
147-56
]
[
2010
4
1
1
1-12
]
[
1993
90
10
10
4596-600
]
[
1991
88
9
9
3952-6
]
[
2006
89
5
5
1488-501
]
[
2003
3
9
9
710-20
]
[
2005
6
1
1
57-64
]
[
2004
11
1
1
174-85
]
[
2005
141
1
1
21-8
]
[
2009
80
4
4
446-50
]
[
2009
92
12
12
6046-51
]
[
2011
142
1-2
1-2
87-94
]
[
2014
6
10
10
246-59
]
[
2008
4
4
18
]
[
2008
1
3
3
239-43
]
[
2007
75
3
3
1325-133
]
[
2008
39
2
2
18
]
[
2009
136
3-4
3-4
335-40
]
[
2010
143
2-4
2-4
293-8
]
[
2004
15
10
10
834-42
]
[
1995
267
5204
5204
1645-8
]
[
1993
268
9
9
6641-8
]
[
2004
2
2
173-82
]
[
2004
72
12
12
7311-4
]
[
1998
66
3
3
1045-56
]
[
2010
93
2
2
775-83
]
[
2010
78
4
4
1781-8
]
[
2011
140
3-4
3-4
181-9
]
[
1996
396
2-3
2-3
319-22
]