- Correspondence to Dr Elena Roncella, Department of Obstetrics, Gynecology, and Neonatology, University of Milan, La Fondazione IRCCS Ca' Granda Ospedale Maggiore di Milano Policlinico, Milano 20122, Italy;
- Received August 10, 2019
- Revision received October 11, 2019
- Accepted October 17, 2019
- First published November 19, 2019.
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