1. Safety implications of the Boyle–Davis mouth gag and tracheal tube position in tonsillectomy 
B.G. Fennessy, R O’Connor, M Cronin, J.E. Fenton, J.P. Hughes 
British Journal of Anaesthesia 
Volume 105, Issue 6, Pages (December 2010)
DOI: /bja/aeq264
Copyright © 2010 The Author(s) Terms and Conditions

2. Fig 1 Closed BDG in a cadaveric sagittal head and neck section.
British Journal of Anaesthesia  , DOI: ( /bja/aeq264)
Copyright © 2010 The Author(s) Terms and Conditions

3. Fig 2
Opened BDG in a cadaveric sagittal head and neck section, with inferior displacement of the TT.
British Journal of Anaesthesia  , DOI: ( /bja/aeq264)
Copyright © 2010 The Author(s) Terms and Conditions

4. Fig 3
Scatter graph illustrating absolute TT displacement (mm) with increasing age (yr).
British Journal of Anaesthesia  , DOI: ( /bja/aeq264)
Copyright © 2010 The Author(s) Terms and Conditions