{{Cite journal| doi = 10.1186/s12877-020-01850-y| issn = 1471-2318 (Electronic) 1471-2318 (Linking)| volume = 20| issue = 1| pages = 443| last1 = Nissen| first1 = S. K.| last2 = Fournaise| first2 = A.| last3 = Lauridsen| first3 = J. T.| last4 = Ryg| first4 = J.| last5 = Nickel| first5 = C. H.| last6 = Gudex| first6 = C.| last7 = Brabrand| first7 = M.| last8 = Andersen-Ranberg| first8 = K.| title = Cross-sectoral inter-rater reliability of the clinical frailty scale - a Danish translation and validation study| journal = BMC Geriatr| date = 2020-11-05| pmid = 33143651}}