British Journal of AnaesthesiaVolume 109, Issue 3, September 2012, Page 464CorrespondenceReply from the authorsAuthor links open overlay panelJ.D. Griffiths, C.F. Royse, P. HebbardShow moreShareCitehttps://doi.org/10.1093/bja/aes287Get rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)Copyright © 2012 The Author(s). Published by Elsevier Ltd. All rights reserved.