{{Cite journal| doi = 10.1186/s13063-023-07795-y| issn = 1745-6215 (Electronic) 1745-6215 (Linking)| volume = 25| issue = 1| pages = 86| last1 = Bessat| first1 = C.| last2 = Bingisser| first2 = R.| last3 = Schwendinger| first3 = M.| last4 = Bulaty| first4 = T.| last5 = Fournier| first5 = Y.| last6 = Della Santa| first6 = V.| last7 = Pfeil| first7 = M.| last8 = Schwab| first8 = D.| last9 = Leuppi| first9 = J. D.| last10 = Geigy| first10 = N.| last11 = Steuer| first11 = S.| last12 = Roos| first12 = F.| last13 = Christ| first13 = M.| last14 = Sirova| first14 = A.| last15 = Espejo| first15 = T.| last16 = Riedel| first16 = H.| last17 = Atzl| first17 = A.| last18 = Napieralski| first18 = F.| last19 = Marti| first19 = J.| last20 = Cisco| first20 = G.| last21 = Foley| first21 = R. A.| last22 = Schindler| first22 = M.| last23 = Hartley| first23 = M. A.| last24 = Fayet| first24 = A.| last25 = Garcia| first25 = E.| last26 = Locatelli| first26 = I.| last27 = Albrich| first27 = W. C.| last28 = Hugli| first28 = O.| last29 = Boillat-Blanco| first29 = N.| last30 = group| first30 = Plus-Is-Less study| title = PLUS-IS-LESS project: Procalcitonin and Lung UltraSonography-based antibiotherapy in patients with Lower rESpiratory tract infection in Swiss Emergency Departments: study protocol for a pragmatic stepped-wedge cluster-randomized trial| journal = Trials| date = 2024-01-26| pmid = 38273319}}