title: Frequent prenatal ultrasound: time to think again.
authors.affiliation: Department of Obstetrics, Gynaecology and Reproduction, Leiden University Hospital, Netherlands.
authors.forename: M J
authors.initials: MJ
authors.lastname: Keirse
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D016216:Ultrasonography, Prenatal / Q000009:adverse effects*