1405-6666 1405-6666 S1405-66662016000300975 Mexico 00 09 2016 00 09 2016 21 70 975 991

2012 5 1 1 120-39 2005 2000 2005 1 2 2 183-94 2005 8 1 1 1575-813 2012 5 1 1 21-33 Facultad de Medicina 2009 2008 2012 5 1 1 106-19 2012 2011 17 2 2 1-21 2010 25 12 12 1337-45 1999 2 1 1 353-68 2008 225-46 2007 2004 1998 2012 1 1 1 2008 11 3 3 157-67 2012 18 1 1 2009 38 1 1 113-40 2004 2007 13 2 2 175-90 2003 2003 1 2 2 1-15 2007 2000 14 1 1 17-25 2005 37 2 2 1-8 Royal College of Physicians and Surgeons of Canada 2006 2009 11 2 2 2004 29-35 2000 2007 2005 27 1 1 29-36 2011 37 37 1-18 2012 5 1 1 318-27 Tuning 2015 Tuning 2015 2003 28 4 4 395-410 2002 131 131 9-14 2004 42 5 5 2007