Received: 26 July 2019
Accepted: 25 May 2020
First Online: 9 June 2020
Ethics approval and consent to participate
: The study protocol was designed according to the CONSORT statement.Ethics approval was obtained on 15/11/2013 by our local ethics committee, the Ethics and Research Committee of the Egyptian IVF Center, headed by Professor Ibrahim Fahmy, (ExternalRef removed) and received an IRB number of 3/2013.The trial was registered on 31 January 2014 at ExternalRef removed, number 69810120.All patients signed an informed consent with all study details.
: Not applicable.
: The authors declare that they have no competing interests.