title: Evidence of effectiveness and fetal investigation: trials and tribulations.
authors.forename: D
authors.initials: D
authors.lastname: Maulik
mesh_terms: D002986:Clinical Trials as Topic; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods / Q000639:trends