0120-8705 0120-8705 S0120-87052021000100037 10.21615/cesmedicina.35.1.4 Colombia Colombia Colombia Colombia Colombia 00 04 2021 00 04 2021 35 1 37 43

1 2016 20 4 4 552-8 2 1996 334 8 8 494-500 3 2013 45 10 10 3555-7 4 2013 17 2 2 E67-70 5 2007 33 2 2 230-6 6 2008 47 3 3 256-62 7 2017 44 3 3 205-8 8 2013 2 5 5 38-43 9 2011 25 4 4 493-504 10 1997 4 4 4 265-76 11 2011 17 10 10 1304-9 12 2000 13 5 5 313-26 13 2002 73 3 3 379-86 14 2017 18 487-90 15 World Health Organization Council for International Organizations of Medical Sciences 2017