1Department of General Practice and Primary Care, University of Aberdeen, Foresterhill Health Centre, Westburn Road, Aberdeen AB25 2AY, Scotland, UK
2Chairperson, Family Physician Airways Group of Canada, Richmond Hill, Ontario, Canada
3Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
*Tel.: +44 01224 554588; fax: +44 01224 840683. E-mail address: d.price@abdn.ac.uk.