0121-8123 0121-8123 S0121-81232018000100069 10.1016/j.rcreu.2016.12.002 Colombia Colombia Colombia Colombia Colombia Colombia 00 03 2018 00 03 2018 25 1 69 74

1 2006 16 335-40 2 2014 10 148-59 3 2016 19 111-8 4 2013 532612 5 2010 9 591-4 6 Ortega de Victoria L.Moradiellos J 2016 52 175 7 2015 11 599-609 8 2012 2012 358371 9 2009 39 469-77 10 2002 105 9-19 11 2012 64 3061-7 12 2015 16 129 13 2012 22 21-30 14 2009 58 1504-7 15 2012 91 57-66