1. Reliability of the American Society of Anesthesiologists physical status scale in clinical practice 
A. Sankar, S.R. Johnson, W.S. Beattie, G. Tait, D.N. Wijeysundera 
British Journal of Anaesthesia 
Volume 113, Issue 3, Pages (September 2014)
DOI: /bja/aeu100
Copyright © 2014 The Author(s) Terms and Conditions

2. Fig 1
Distribution of ASA-PS ratings in the operating theatre, within strata defined by ASA-PS rating in the preoperative assessment clinic.
British Journal of Anaesthesia  , DOI: ( /bja/aeu100)
Copyright © 2014 The Author(s) Terms and Conditions