2604-1227 2604-1227 S2604-12272021000400157 10.24875/rmo.m21000171 México México México 00 08 2021 00 08 2021 95 4 157 160

1 2011 22 15-8 2 2017 28 98-103 3 2010 17 75-81 4 2014 158 242-50 5 Committee on Standards and Practice Parameters. American Society of Anesthesiologists Task Force on Preanesthesia Evaluation 2002 96 485-96 6 2012 3 3 3-6 7 2000 342 168-75