0001-6002 0001-6002 S0001-60022018000300127 Costa Rica Costa Rica Costa Rica 00 09 2018 00 09 2018 60 3 127 131

1 American academy of family physicians, American college of chest physicians, and the American thoracic society 2006 118 4 4 2 2011 170 1427-33 3 2010 156 634-8 4 2013 98 12 12 5 2010 22 2 2 6 2011 75 182-7 7 2009 154 177-82 8 2004 49 902-6 9 2008 121 82-8 10 2013 78 210-5 11 2011 37 847-52 12 2012 28 1117-23 13 2014 50 373-8 14 2009 24 323-8 15 2012 13 1-7