0187-5779 0187-5779 S0187-57792016000200201 México 00 06 2016 00 06 2016 34 2 201 206

2006 6 220-7 1993 45‑48 2011 29 343-56 2006 31 37-52 2006 3 30-4 2007 2010 1 17-23 2012 30 355-62 1997 21 481-7 2005 159-76 2014 32 161-72 2006 SAS Institute 2014