2007-4085 2007-4085 S2007-40852020000200011 10.48193/rmu.v80i2.595 Colombia 00 04 2020 00 04 2020 80 2 1 2019 2 11 11 2 2011 659 3 2016 10 1 1 30-6 4 2007 30 4 4 230-40 5 2006 59 10 10 965-76 6 2017 49 6 6 856-65 7 2018 9 16 16 12630-8