1. Pulmonary aspiration during procedural sedation: a comprehensive systematic review 
S.M. Green, K.P. Mason, B.S. Krauss 
British Journal of Anaesthesia 
Volume 118, Issue 3, Pages (March 2017)
DOI: /bja/aex004
Copyright © 2017 The Author(s) Terms and Conditions

2. Fig 1
Flow diagram of study selection process. *This study22 was a search of a Medicare billing database that identified 173 occurrences of ‘aspiration pneumonia’ billing code within 30 days after colonoscopy; no clinical details are available.
British Journal of Anaesthesia  , DOI: ( /bja/aex004)
Copyright © 2017 The Author(s) Terms and Conditions

3. Fig 2
Endoscopy-associated aspiration noted in literature search. GI, gastrointestinal; ICU, intensive care unit; PEG, percutaneous endoscopic gastrostomy; ARDS, Acute respiratory distress syndrome.
British Journal of Anaesthesia  , DOI: ( /bja/aex004)
Copyright © 2017 The Author(s) Terms and Conditions