T, R., & J, P. (2009). [Update on the use of contrast agents in ultrasonography: A review of the clinical guidelines of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB)]. Radiologia, 51(4), 362. https://doi.org/10.1016/j.rx.2009.05.002
Chicago Style (17th ed.) CitationT, Ripollés, and Puig J. "[Update on the Use of Contrast Agents in Ultrasonography: A Review of the Clinical Guidelines of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB)]." Radiologia 51, no. 4 (2009): 362. https://doi.org/10.1016/j.rx.2009.05.002.
MLA (9th ed.) CitationT, Ripollés, and Puig J. "[Update on the Use of Contrast Agents in Ultrasonography: A Review of the Clinical Guidelines of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB)]." Radiologia, vol. 51, no. 4, 2009, p. 362, https://doi.org/10.1016/j.rx.2009.05.002.