- Correspondence to Professor Christhardt Köhler, Department of Special Operative and Oncologic Gynecology, Asklepios Klinik Altona, Hamburg, Germany; Department of Gynecology, Medical Faculty of the University of Cologne, Koln, Germany;
- Received February 24, 2019
- Revision received March 30, 2019
- Accepted April 8, 2019
- First published June 2, 2019.
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