Open-label placebo for insomnia (OPIN): study protocol for a cohort multiple randomised controlled trial
Ben Colagiuri, Louise Sharpe, Zahava Ambarchi, Nick Glozier, Delwyn Bartlett, Daniel S J Costa, Amelia Scott
BMJ Open Feb 2021, 11 (2) e044045; DOI: 10.1136/bmjopen-2020-044045