title: Response to Dalal et al.
authors.affiliation: Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands.
authors.forename: Kamlesh
authors.initials: K
authors.lastname: Madan
authors.affiliation: Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands.
authors.forename: Martijn H
authors.initials: MH
authors.lastname: Breuning
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D011296:Prenatal Diagnosis; D012732:Sex Determination Analysis; D012744:Sex Ratio