0026-1742 0026-1742 S0026-17422015000600048 Mexico Mexico Mexico 00 12 2015 00 12 2015 58 6 48 55

1 2 1993 100 3 3 363-406 3 2007 1-8 4 1985 5 2006 6 2014 341-52 7 2004 79 10 10 S70-81 8 1984 10 3 3 483-95 9 2008 9 1 1 27-34 10 2008 15 11 11 988-94 11 Fortoul Van Der Goes T 2011 12 2014 89 2 2 272-6 13 2013 88 8 8 1067-73 14 2010 15 2008 83 8 8 761-7 16 2013 5 1 1 6-7 17 2010 11 18 2004 24 3 3 177-81 19 1997 19 193-208 20 2002 626 28-33 21 1983 250 777-81 22 2002 77 1185-8 23 2007 46 167 167 151-6 24 1998 13 2 2 111-6 25 2012 34 10 10 787-91 26 Van de Ridder JM.Stokking KM.McGaghie WC.Ten Cate OTJ 2008 42 2 2 189-7 27 2008 15 995-1001 28 2002 287 2 2 226-35 29 2009 30 2008 18 913-6 32 1985 32 2011 33 2007 4 82-6 34 2009 35 2005 2nd 77-85 36 2013 56 5 5 26-42