2444-054X 2444-054X S2444-054X2020000200244 10.24875/ciru.19001190 México México 00 04 2020 00 04 2020 88 2 244 246 1 2019 87 146-50 2 ASGE St ards of Practice Committee 2010 71 1-9 3 ASGE St ards of Practice Committee 2019 89 1075-105 4 2019 51 472-91 5 2017 31 2007-16