Published on in Vol 9, No 8 (2021): August
                                    Preprints (earlier versions) of this paper are
                                    available at
                                    https://preprints.jmir.org/preprint/26398, first published
                                    .
                                

1 Department of Computer Science & Information Engineering, National Taiwan University, Taipei, Taiwan
2 Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
3 MJ Health Screening Center, Taipei, Taiwan
