0123-5931 0123-5931 S0123-59312021000100265 10.15446/lthc.v23n1.90601 Colombia 00 06 2021 00 06 2021 23 1 265 288

2009 9 89-96 2018 2018 2015 2019 2005 2006 1993 2001 1994 2018 1994 2003 1985 1989 1999 2015 43 43 203-14 2015