1659-0775 1659-0775 S1659-07752017000200045 Costa Rica 00 12 2017 00 12 2017 27 45 50

2015 41 11 11 1830-3 2013 46 3 3 15-20 American Cancer Society 2015 2004 46 3 3 2015 2000 108 214-21 2014 42 986-92 2012 Clinical Practice Guidelines 2013 37 6 6 298-306 2014 40 10 10 1553-9 2012 20 3 3 54-61 2009 2005