RT Journal Article SR Electronic T1 Ultrasound, macroscopic and histological features of endometrioid and clear cell ovarian cancer JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP ijgc-2020-001625 DO 10.1136/ijgc-2020-001625 A1 Giulia Bolomini A1 Valentina Bertoldo A1 Gian Franco Zannoni A1 Federica Pozzati YR 2020 UL http://ijgc.bmj.com/content/early/2020/11/02/ijgc-2020-001625.abstract AB