The present study was approved by the local committee of the Orygin Fertility Center, Iasi, Romania (no 115/565; 25 January 2021). This manuscript was conducted in accordance with the Helsinki Declaration of human rights and national and European regulations on biomedical research in force. Participants were kindly asked and agreed to sign written informed consent forms for their voluntary contribution to this study. They did not receive any remuneration in this context.
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