{{Cite journal| doi = 10.1016/j.amjmed.2020.09.018| issn = 1555-7162 (Electronic) 0002-9343 (Linking)| volume = 134| issue = 3| pages = –165-e170| last1 = Eschler| first1 = C. M.| last2 = Antelo| first2 = A.| last3 = Funk| first3 = G. C.| last4 = Exadaktylos| first4 = A. K.| last5 = Lindner| first5 = G.| title = High Fluctuation Between Anticoagulants, Frequent Off-Label Dosing, and No Difference Concerning Outcomes: Results of a Real-Life Cohort Study| journal = Am J Med| date = 2021-03-02| pmid = 33645506}}