title: Doppler scans to assess placental competence: lifesaving technique or over-complicating low-risk pregnancies?
mesh_terms: D005260:Female; D006801:Humans; D008429:Maternal Welfare; D010920:Placenta / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000000981:diagnostic imaging*; D013222:State Medicine; D016216:Ultrasonography, Prenatal / Q000706:statistics & numerical data*; D006113:United Kingdom; D019564:Unnecessary Procedures / Q000379:methods*