1. A huffing manoeuvre, immediately before induction of anaesthesia, prevents fentanyl- induced coughing: a prospective, randomized, and controlled study 
S.P. Ambesh, N. Singh, D. Gupta, P.K. Singh, U. Singh 
British Journal of Anaesthesia 
Volume 104, Issue 1, Pages (January 2010)
DOI: /bja/aep333
Copyright © 2010 The Author(s) Terms and Conditions

2. Fig 1 Number of patients included and excluded from the study.
British Journal of Anaesthesia  , 40-43DOI: ( /bja/aep333)
Copyright © 2010 The Author(s) Terms and Conditions