
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (CC BY).
ORIGINAL RESEARCH
Sonographic features of ovarian tumors in pregnant women before surgical intervention and chemotherapy
1 Family Planning and Reproduction Center, Moscow, Russia
2 Pirogov Russian National Research Medical University, Moscow, Russia
Correspondence should be addressed: Pyotr A. Klimenko
Sevastopolsky prospect, 24а, Moscow, 117209; ur.liam@oknemilk.ap
Author contribution: the authors contributed to study management and manuscript writing equally, read and approved the final version of the article prior to publishing.
Compliance with ethical standards: the study was approved by the Ethics Committee of Pirogov Russian National Research Medical University (protocol № 176 dated June 25, 2018). The informed consent was submitted by all study participants.