Fleischer AC, Lyshchik A, Andreotti RF, Hwang M, Jones HW, Fishman DA. Advances in sonographic detection of ovarian cancer: depiction of tumor neovascularity with microbubbles. AJR Am J Roentgenol. 2010 Feb;194(2):343–8. doi: 10.2214/ajr.09.3446. PMID: 20093594.