%0 Letter %T Preoperative fasting guidelines in National Health Service England Trusts: a thirst for progress. %A Sands R %A Wiltshire R %A Isherwood P %J Br J Anaesth %V 129 %N 4 %D Oct 2022 %M 35940946 %F 11.719 %R 10.1016/j.bja.2022.07.004 %X