0028-3746 0028-3746 S0028-37462018000200148 Colombia Colombia 00 06 2018 00 06 2018 77 2 148 150

1 2013 38 10 10 1980-2 2 2008 90 7 7 557-60 3 2008 83 5 5 267-8 4 2012 125 1 1 e1-2 5 2017 47 2 2 158-64