2007-0934 2007-0934 S2007-09342014001001451 Mexico 00 00 2014 00 00 2014 5 spe8 1451 1458

1968 34 1-31 1989 637 1994 2 445 1986 37 178 178 705-15 2002 54 1980 681 1980 810 1962 245 2001 2 665 1962 2 2 2 176-7 2013 602 2010 1 3 3 289-304 1975 5 2 192 1988 39 205 205 1121-8 1984 380 2001 Saltillo, Coahuila 10 2009 43 81-6 2009 31 Statistical Analysis System Institute (SAS) 2002 2011 10