Harrop, E; Jamieson, EM; Choy, TH; Ho, WHP; Wong, ICK; (2018) Barriers to the use of buccal and intranasal fentanyl for breakthrough pain in paediatric palliative care: an exploratory survey. BMJ Supportive and Palliative Care , 8 (3) pp. 355-366. 10.1136/bmjspcare-2017-001413. Green open access