0122-9354 0122-9354 S0122-93542017000100013 10.19052/mv.4046 Chile Chile Chile Chile Chile Chile Chile 00 01 2017 00 01 2017 33 13 20

2003 20 1 1 47-51 2010 2nd 2013 197 3 3 462-9 2011 10 2 2 123-37 1996 38 6 6 431-5 1993 15 1-2 1-2 2009 7 11 11 66-70 2009 23 5 5 336-40 2010 5 1 1 51-4 1999 54 1-2 1-2 33-6 2000 5 2 2 21 2004 34 4 4 1133-7 2011 61 4 4 265-9