title: Authors' reply to Candido-dos-Reis.
authors.affiliation: Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium Department of Obstetrics and Gynaecology, University Hospitals Leuven, 3000 Leuven, Belgium dirk.timmerman@uzleuven.be.
authors.forename: Dirk
authors.initials: D
authors.lastname: Timmerman
authors.affiliation: Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium Department of Obstetrics and Gynaecology, University Hospitals Leuven, 3000 Leuven, Belgium.
authors.forename: Jeroen
authors.initials: J
authors.lastname: Kaijser
authors.affiliation: Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium Department of Obstetrics and Gynaecology, University Hospitals Leuven, 3000 Leuven, Belgium Queen Charlotte's and Chelsea Hospital, Imperial College, London, UK.
authors.forename: Tom
authors.initials: T
authors.lastname: Bourne
authors.affiliation: Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium.
authors.forename: Ben
authors.initials: B
authors.lastname: Van Calster
mesh_terms: D000291:Adnexal Diseases / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D015233:Models, Statistical; D010051:Ovarian Neoplasms / Q000000981:diagnostic imaging*; D018570:Risk Assessment / Q000379:methods*; D014463:Ultrasonography