{{Cite journal| doi = 10.1136/bmjopen-2021-055869| issn = 2044-6055 (Electronic) 2044-6055 (Linking)| volume = 12| issue = 5| pages = –055869| last1 = Prendki| first1 = V.| last2 = Garin| first2 = N.| last3 = Stirnemann| first3 = J.| last4 = Combescure| first4 = C.| last5 = Platon| first5 = A.| last6 = Bernasconi| first6 = E.| last7 = Sauter| first7 = T.| last8 = Hautz| first8 = W.| last9 = group| first9 = Octoplus study| title = LOw-dose CT Or Lung UltraSonography versus standard of care based-strategies for the diagnosis of pneumonia in the elderly: protocol for a multicentre randomised controlled trial (OCTOPLUS)| journal = BMJ Open| date = 2022-05-07| pmid = 35523502}}