0187-5779
0187-5779
S0187-57792012000300271
Mexico
00
09
2012
00
09
2012
30
3
271
278
[
1998
32
225-31
]
[
1979
]
[
1993
57
1066-70
]
[
1997
35
925-40
]
[
2006
76
54-67
]
[
2004
24
39-48
]
[
1998
]
[
2005
301
198-215
]
[
1997
40
129-35
]
[
1990
]
[
2004
20
426-31
]
[
2005
29
189-217
]
[
2006
57
381-91
]
[
2003
28
371-84
]
[
2002
50
688-99
]
[
2000
]
[
2000
38
299-312
]
[
2001
44
1167-74
]
[
2001
44
1175-81
]
[
1995
35
55-65
]
[
1975
63
995-1101
]
[
1995
171
297-302
]