0121-2494 0121-2494 S0121-24942019000100153 Canada Colombia 00 06 2019 00 06 2019 50 153 158

2002 1997 1998 2002 14 63-77 2000 2 1-15 2011 2014 2015 2012 IX-XVII 2008 2000 2001 2003 May 5 11-4