0124-5376 0124-5376 S0124-53762018000300060 10.21068/c2018.v19s1a06 Colombia Colombia Colombia 00 06 2018 00 06 2018 19 60 64

1955 31 1-32 2006 2 646 2007 16 127-37 1843 300 2006 313 2007 29 139-49 2013 39 2 2 1-19 2011 11 4 4 239-53