2312-3893 2312-3893 S2312-38932017000100070 10.18004/rvspmi/2312-3893/2017.04(01)70-076 Ecuador Ecuador Ecuador Ecuador Ecuador 00 03 2017 00 03 2017 4 1 70 76

1 2016 2 2015 3 2014 3th ed 4 2015 67 3 3 519-30 5 International Agency for Research on Cancer, WHO 2012 6 2005 66 6 6 1186-91 7 2016 66 1 1 7-30 8 2013 49 6 6 1374-403 9 2006 6 119 10 2006 98 18 18 1331-4 11 2006 30 3 3 295-300 12 2014 191 6 6 1665-70 13 2005 29 2 2 179-89 14 2007 60 10 10 1167-74 15 2010 34 1 1 71-7 16 2007 207 4 4 187-9 17 2006 21 2 2 63-5 18 2016 17 9 9 1187-9 19 2016 17 9 9 1317-24 20 2014 25 ^sSuppl 3 ^sSuppl 3 Suppl 3 iii49-56 21 2010 28 6 6 1061-8 22 2007 356 2 2 115-24. 23 2007 370 9605 9605 2103-11 24 2006 295 21 21 2516-24 25 2013 369 8 8 722-31 26 2008 26 22 22 3743-8 27 2009 10 8 8 757-63 28 2009 27 22 22 3584-90