1405-0099 1405-0099 S1405-00992019000300221 Cuba Cuba Cuba Cuba 00 09 2019 00 09 2019 41 3 221 225

1 2009 20 883-91 2 2008 23 233-8 3 2017 85 350-5 4 2011 27 313-7 5 2011 23 177-81 6 ASGE Standards of Practice Committee 2011 73 1085-91 7 2009 2 9363 8 2013 19 230-4 9 2015 30 106-13 10 2010 4 244 11 2013 19 3892-4 12 2010 78 87-91 13 2011 29 369-400 14 2010 49 995-9 15 2010 102 51-2 16 2006 21 150-60 17 2006 26 400-3 18 2008 28 278-81 19 2010 12 237-45 20 2009 66 1677-82 21 2015 125 2472-5 22 2014 80 535-7 23 2013 15 321 24 2011 73 890-9 25 2011 213 164-71 26 2011 98 818-24