Published on in Vol 8, No 5 (2020): May
                                    Preprints (earlier versions) of this paper are
                                    available at
                                    https://preprints.jmir.org/preprint/17647, first published
                                    .
                                

1 Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
2 Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
3 Department of Urology, Seoul National University College of Medicine, Seoul, Republic of Korea
