RT Journal Article SR Electronic T1 Clinical Gynaecological Oncology JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP 193 OP 194 DO 10.1046/j.1525-1438.1991.01040193-3.x VO 1 IS 4 A1 J. Berek YR 1991 UL http://ijgc.bmj.com/content/1/4/193.3.abstract AB