?url_ver=Z39.88-2004&rft_id=10.1093%2Fbja%2Faeq239&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Greenland&rft.aufirst=Keith&rft.au=Greenland%2C+Keith&rft.date=2010&rft.issue=5&rft.volume=105&rft.atitle=Changes+in+airway+configuration+with+different+head+and+neck+positions+using+magnetic+resonance+imaging+of+normal+airways%3A+a+new+concept+with+possible+clinical+applications&rft.issn=0007-0912&rft.title=British+Journal+of+Anaesthesia&rft.genre=article