0012-7353 0012-7353 S0012-73532017000200138 10.15446/dyna.v84n201.58694 Colombia Colombia Colombia 00 06 2017 00 06 2017 84 201 138 144

1996 11 2 2 1050-8 2013 28 2 2 1242-4 2012 1-4 2009 3rd ed 2013 61 1 1 28-37 2013 28 2 2 1024-31 1988 3 2 2 476-89 1994 1994 Pittsburgh, PA , USA 2013 21 2 2 262-70 2013 15 23-33 2004 1-31 2005 1 207-10 2010 6923-6 2013 3 2 2 42-6 2011 1934-7 2008 38 381-6 2011 3329-34 2003 18 2 2 648-56 2011 6 2013 28 3 3 1709-14 2002 1 317-21 2007 XIII 37 37 133-8 2012 79 173 173 66-74 2016 2016