- Correspondence to Professor Oskari Heikinheimo, Department of Obstetrics and Gynaecology, Helsinki University Hospital, Helsinki, 00029-HUS, Finland;
- Received March 2, 2018
- Revised August 23, 2018
- Accepted August 23, 2018
- First published September 15, 2018.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.