{{Cite journal| doi = 10.1016/j.urology.2021.04.032| issn = 1527-9995 (Electronic) 0090-4295 (Linking)| volume = 154| pages = 320–325| last1 = Tshering Vogel| first1 = D. W.| last2 = Kiss| first2 = B.| last3 = Heverhagen| first3 = J. T.| last4 = Benackova| first4 = K.| last5 = Burkhard| first5 = F.| last6 = Muller| first6 = M.| last7 = Uehlinger| first7 = D.| last8 = Arampatzis| first8 = S.| title = Prospective Comparison of Contrast-Enhanced Ultrasound and Magnetic Resonance Imaging to Computer Tomography for the Evaluation of Complex Cystic Renal Lesions| journal = Urology| date = 2021-05-14| pmid = 33984367}}