0187-5779
0187-5779
S0187-57792011000200143
México
00
06
2011
00
06
2011
29
2
143
151
[
1999
]
[
2001
564
355-7
]
[
1988
61-9
]
[
1980
11
547-56
]
[
2002
]
[
1989
]
[
2006
29
69-77
]
[
2004
38
565-71
]
[
1981
12
795-809
]
[
1981
12
1163-79
]
[
1994
74
565-71
]
[
1994
74
833-9
]
[
1996
]
[
2004
39
520-4
]
[
1996
121
158-63
]
[
2004
129
439-48
]
[
1995
]
[
SAS Institute
1999
]
[
1980
112
295-304
]
[
1994
24
272-7
]