title: Periodic health examination, 1992 update: 2. Routine prenatal ultrasound screening. Canadian Task Force on the Periodic Health Examination.
mesh_terms: D002170:Canada; D003955:Diagnostic Tests, Routine; D005069:Evaluation Studies as Topic; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging / Q000517:prevention & control*; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome; D016032:Randomized Controlled Trials as Topic; D013673:Technology Assessment, Biomedical; D016216:Ultrasonography, Prenatal / Q000523:psychology / Q000706:statistics & numerical data*