0034-7450 0034-7450 S0034-74502018000100002 10.1016/j.rcp.2017.01.005 Colombia 00 03 2018 00 03 2018 47 1 2 3 1 1982 1.a 2 2002 359 57-61 3 2014 8 69-75 4 1994 19 180-93 5 2011 13 470-9 6 1998 27 91-5 7 1998 55 272-7 8 2004 6 302-18