0186-4866 0186-4866 S0186-48662018000400008 10.24245/mim.v34i4.1684 Mexico 00 08 2018 00 08 2018 34 4 566 573

1 2015 2 2 2015 10 2 2 92-8 3 1990 X ^s1 ^s1 1 101-3 4 2006 443-7 5 2004 6 9 9 532-9 6 2007 7 34F-44F 7 CENETEC 2013