1692-8261 1692-8261 S1692-82612016000200062 10.15665/rp.v14i2.609 Colombia Colombia 00 12 2016 00 12 2016 14 2 62 70

2013 83 3 3 429-37 2015 84 12 12 2492-500 2008 12 3 3 259-74 2004 2015 62 253-62 2016 97 1 1 91-9 1991 13 2 2 111-34 2014 2014 Cartagena 2011 77 3 3 450-6 2014 52 6 6 1145-62 2015 75 88-92 2013 94 5 5 487-95 2015 15 5 5 313-24 2011 30 4 4 928-45 2015 69 1 1 61-71 2010 57 4 4 866-82 2008 27 10 10 1373-7 2009 49 8 8 723-32 2008 34 7 7 1117-11128 2015 University of Illinois 2015