0120-0690 0120-0690 S0120-06902016000400288 10.17533/udea.rccp.v29n4a06 Mexico Mexico 00 12 2016 00 12 2016 29 4 288 295

2013 45 1051-4 2002 49 71-9 2013 45 1391-7 2011 96 93-100 2010 50 1017-25 2012 28 358-63 2005 20 51-9 2003 63 309-15 2004 54 43-51 2013 42 734-42 2005 83 777-85 2003 57 209-26 2007 69 28-35 2007 47 14-8 2003 59 1027-50 2005 93 51-61 2014 92 2885-95 2004 82 3144-53 1991 69 2744-53 1997 24 77-83 2014 17 123-7 2010 88 3198-205 2014 54 656-66 2009 19 522-32 2011 10 3149-54 2012 107 231-41 2014 114 267-75 2010 70 171-4 2012 103 205-10 2010 131 203-11 2012 44 29-37 2009 84 16-21 2007 71 1-12 1993 71 2047-54 2013 7 7-16 2006 46 431-46 NRC (National Research Council) 2007 2012 90 4239-47 2009 47 313-22 2013 112 28-34 2014 12 272-86 SAS Institute 2013 2007 1 151-7 2011 2 247-58 2005 20 37-41 2007 69 222-7 2004 24 196-8