Knudsen , K., Pöder , U., Nilsson , U., Högman , M., Larsson , A. and Larsson , J. (2018) “How anaesthesiologists understand difficult airway guidelines—an interview study”, Upsala Journal of Medical Sciences, 122(4), pp. 243–248. doi: 10.1080/03009734.2017.1406020.