title: ISUOG practice guidelines: performance of first-trimester fetal ultrasound scan.
authors.forename: L J
authors.initials: LJ
authors.lastname: Salomon
authors.forename: Z
authors.initials: Z
authors.lastname: Alfirevic
authors.forename: C M
authors.initials: CM
authors.lastname: Bilardo
authors.forename: G E
authors.initials: GE
authors.lastname: Chalouhi
authors.forename: T
authors.initials: T
authors.lastname: Ghi
authors.forename: K O
authors.initials: KO
authors.lastname: Kagan
authors.forename: T K
authors.initials: TK
authors.lastname: Lau
authors.forename: A T
authors.initials: AT
authors.lastname: Papageorghiou
authors.forename: N J
authors.initials: NJ
authors.lastname: Raine-Fenning
authors.forename: J
authors.initials: J
authors.lastname: Stirnemann
authors.forename: S
authors.initials: S
authors.lastname: Suresh
authors.forename: A
authors.initials: A
authors.lastname: Tabor
authors.forename: I E
authors.initials: IE
authors.lastname: Timor-Tritsch
authors.forename: A
authors.initials: A
authors.lastname: Toi
authors.forename: G
authors.initials: G
authors.lastname: Yeo
mesh_terms: D025063:Chromosome Disorders / Q000000981:diagnostic imaging; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D005333:Fetus / Q000033:anatomy & histology*; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011295:Prenatal Care / Q000379:methods; D013997:Time Factors; D016216:Ultrasonography, Prenatal / Q000295:instrumentation / Q000379:methods*