{{Cite journal| doi = 10.1016/j.ajem.2019.06.035| issn = 1532-8171 (Electronic) 0735-6757 (Linking)| volume = 37| issue = 9| pages = 1754–1757| last1 = Hasemann| first1 = W.| last2 = Grossmann| first2 = F. F.| last3 = Bingisser| first3 = R.| last4 = Hafner| first4 = M.| last5 = Breil| first5 = D.| last6 = Kressig| first6 = R. W.| last7 = Nickel| first7 = C. H.| title = Optimizing the month of the year backwards test for delirium screening of older patients in the emergency department| journal = Am J Emerg Med| date = 2019-07-03| pmid = 31262626}}