1409-0015 1409-0015 S1409-00152016000100079 00 03 2016 00 03 2016 33 1 79 84

2007 4 2011 17 6 6 429-31 1999 16 1-2 1-2 14-21 2010 2014 32 4-24 2008 3 1981 1991 1999 2 1993 177-204 World Health Organization 2004