Article History
Received: 14 May 2020
Accepted: 20 November 2020
First Online: 27 November 2020
Ethics approval and consent to participate
: This retrospective cohort study was approved by the Institutional Review Board of Kato Ladies Clinic (approval number: 17–19). Written informed consent for the analysis of de-identified data was obtained from all patients.
: Not applicable.
: The authors declare that they have no competing interests.