Opioid therapy vs. multimodal analgesia in head and neck Cancer (OPTIMAL-HN): study protocol for a randomized clinical trial.
Sondos ZayedPencilla LangLucas C MendezNancy ReadJinka SathyaVaragur VenkatesanDwight E MoulinAndrew WarnerDavid A PalmaPublished in: BMC palliative care (2021)
ClinicalTrials.gov Identifier: NCT04221165 . Date of registration: January 9, 2020. Appendix 2 reports the World Health Organization trial registration dataset.