1. Use of transabdominal ultrasound to enhance safety during oesophageal dilatation 
R Hofmeyr, A Myburgh 
British Journal of Anaesthesia 
Volume 111, Issue 1, Pages (July 2013)
DOI: /bja/aet185
Copyright © 2013 The Author(s) Terms and Conditions

2. Fig 1
Intraoperative transabdominal ultrasound image of the stomach in cross-section, showing gastric folds, intraluminal fluid, and absence of guide wire.
British Journal of Anaesthesia  , DOI: ( /bja/aet185)
Copyright © 2013 The Author(s) Terms and Conditions