{{Cite journal| doi = 10.1136/bmjopen-2024-090508| issn = 2044-6055 (Electronic) 2044-6055 (Linking)| volume = 15| issue = 3| pages = –090508| last1 = Degen| first1 = B.| last2 = Szczesna| first2 = A.| last3 = Nickel| first3 = C. H.| last4 = Bingisser| first4 = R.| last5 = Gaab| first5 = J.| last6 = Minotti| first6 = B.| title = Open-label placebo for non-specific pain in the emergency department (OLP EM): study protocol for a mixed-method randomised control feasibility study in Switzerland| journal = BMJ Open| date = 2025-03-26| pmid = 40132833}}