0122-8285 0122-8285 S0122-82852017000100008 10.5294/pacla.2017.20.1.1 Colombia 00 01 2017 00 01 2017 20 1 8 13 2005 a 2005 b 2005 c 2007 2009 a 2009 b 2000 1996 2002 70 1 1 36-54