RT Journal Article SR Electronic T1 Barriers to the use of buccal and intranasal fentanyl for breakthrough pain in paediatric palliative care: an exploratory survey JF BMJ Supportive & Palliative Care JO BMJ Support Palliat Care FD British Medical Journal Publishing Group SP bmjspcare-2017-001413 DO 10.1136/bmjspcare-2017-001413 A1 Emily Harrop A1 Liz Jamieson A1 Tsun Ho Choy A1 Wing Hei Phoebe Ho A1 Ian C K Wong YR 2017 UL http://spcare.bmj.com/content/early/2017/08/11/bmjspcare-2017-001413.abstract AB