PT - JOURNAL ARTICLE AU - Cornelia Antonia Verberkt AU - Marieke H. J. van den Beuken-van Everdingen AU - Emiel F. M. Wouters AU - Daisy J. A. Janssen TI - Attitudes of patients with chronic breathlessness towards treatment with opioids AID - 10.1183/13993003.01752-2019 DP - 2019 Jan 01 TA - European Respiratory Journal PG - 1901752 4099 - http://erj.ersjournals.com/content/early/2019/10/31/13993003.01752-2019.short 4100 - http://erj.ersjournals.com/content/early/2019/10/31/13993003.01752-2019.full