title: Ultrasound in early pregnancy.
authors.forename: J M
authors.initials: JM
authors.lastname: Pearce
mesh_terms: D005260:Female; D006801:Humans; D011247:Pregnancy / Q000502:physiology*; D011248:Pregnancy Complications / Q000175:diagnosis; D011262:Pregnancy Trimester, Second; D011296:Prenatal Diagnosis; D014463:Ultrasonography