{{Cite journal| doi = 10.4414/smw.2021.20405| issn = 1424-3997 (Electronic) 0036-7672 (Linking)| volume = 151| issue = 5-6| pages = –20405| last1 = Muller| first1 = M.| last2 = Huembelin| first2 = M.| last3 = Baechli| first3 = C.| last4 = Wagner| first4 = U.| last5 = Schuetz| first5 = P.| last6 = Mueller| first6 = B.| last7 = Kutz| first7 = A.| title = Association of in-hospital multimorbidity with healthcare outcomes in Swiss medical inpatients| journal = Swiss Med Wkly| date = 2021-02-13| pmid = 33578431}}