0016-7169 0016-7169 S0016-71692016000300175 10.19155/rgi20165531610 Mexico Mexico Mexico 00 09 2016 00 09 2016 55 3 175 187

2001 151-82 2003 1983 2 243-54 1993 2004 40 97-109 1992 1997 78 46 1999 1 58-64 1999 17 308-14 1998 37 393-08 2001 151-82 2006 33 2015 54 1 1 21-30 1998 3 16-8 2002 467 467 141-57 1994 77-93 2001 95-121 2001 123-36 1995 49 39-48 1978 2003 108 108 1974 345-404 1979 1994 2002 29 27-31 1984 1978 2002 264 264 133-46 1997 14 211-4 1999 22 179-93