0187-5779 0187-5779 S0187-57792012000100097 Mexico Mexico Mexico 00 03 2012 00 03 2012 30 1 97 100

2002 36 201-10 2006 23 96-113 2000 12 60-5 2008 1970 20 81-95 2010 28 149-54 1988