title: Is ultrasound alone enough for prenatal screening of trisomy 18? A single centre experience in 69 cases over 10 years.
authors.affiliation: Prenatal Diagnosis and Counselling Clinic, Department of Obstetrics and Gynaecology, Kwong Wah Hospital, Kowloon, HKSAR, China. soniawml@hotmail.com
authors.forename: S
authors.initials: S
authors.lastname: Lai
authors.forename: W L
authors.initials: WL
authors.lastname: Lau
authors.forename: W C
authors.initials: WC
authors.lastname: Leung
authors.forename: F K
authors.initials: FK
authors.lastname: Lai
authors.forename: R
authors.initials: R
authors.lastname: Chin