2444-6483 2444-6483 S2444-64832021000100050 10.24875/end.20000039 Mexico Mexico United States of America 00 03 2021 00 03 2021 33 1 50 52

1 ASGE Standards of Practice Committee 2011 73 1085-91 2 2016 48 489-96 3 2001 53 193-8 4 2011 53 178-81 5 2006 51 1930-3 6 2004 19 18-21