0304-2847 0304-2847 S0304-28472019000308983 10.15446/rfnam.v72n3.77320 Colombia Colombia 00 12 2019 00 12 2019 72 3 8983 8993

2017 17 1 1 121-9 2017 5 3 3 132-9 2016 4 1 1 92-102 1990 35 35 273-8 2013 35 3 3 271-6 2018 9 9 70-7 2015 19 2 2 419-39 2004 1981 First 2018 52 5 5 548-53 2009 36 3 3 332-5 2017 10 3 3 280-3 2016 38 5 5 319-26 2012 2018 7 3 3 3033-9 2000 60 3 3 373-9 2017 7 3 3 176-81 2014 6 2 2 158-62 2013 2010 67 3 3 333-8 2015 11 3 3 233-6 2018 12 1 1 126-35 2018 36 1 1 5-12 2000 54 1 1 57-66 SAS Institute Inc 2012 2018 88 6 6 877-83 2014 17 2 2 371-9 1969 48 3 3 767-79 2010 23 2 2 184-90