title: First trimester screening--a new algorithm for risk calculation of chromosomal anomalies developed by FMF Germany.
authors.forename: E
authors.initials: E
authors.lastname: Merz
mesh_terms: D002869:Chromosome Aberrations / Q000196:embryology*; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008403:Mass Screening; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D016216:Ultrasonography, Prenatal