RT Journal Article SR Electronic T1 Letter to the Editor re ‘Characteristics of breakthrough cancer pain and its influence on quality of life in an international cohort of patients with cancer (BMJ Support Palliat Care 2016;6:344–52)’ JF BMJ Supportive & Palliative Care JO BMJ Support Palliat Care FD British Medical Journal Publishing Group SP 264 OP 264 DO 10.1136/bmjspcare-2016-001249 VO 7 IS 3 A1 Andrew Davies A1 Andrew Dickman A1 Paul Farquhar-Smith A1 Katherine Webber A1 John Zeppetella YR 2017 UL http://spcare.bmj.com/content/7/3/264.abstract AB