0120-0011 0120-0011 S0120-00112017000400595 10.15446/revfacmed.v65n4.58620 Colombia Colombia Colombia 00 12 2017 00 12 2017 65 4 595 600

1 2008 9 3 3 317-20 2 2003 331 35-66 3 1985 19-37 4 2001 3 1 1 24-34 5 1995 6 13 13 30-43 6 2003 7 1999 34 34 319-28 8 2005 2 26 26 171-90 9 2002 10 2010 2 6-18 11 2009 31 124 124 69-92 12 2007 5th ed 13 2006 14 2006 340 165-85 15 2006 341 663-86 16 2007 17 2009 18 2003 Barcelona 19 2006 22 50 50 159-77 20 1989 9-90 21 2004 2nd ed 22 2004 23 2004 24 2006 25 2001 26 2008 6 1 1 1-14 27 2001 14 3 3 503-23 28 2004 29 2000