title: Ultrasound: a useful tool.
authors.forename: C B
authors.initials: CB
authors.lastname: Smith
mesh_terms: D003479:Curriculum; D005260:Female; D006801:Humans; D007396:Internship and Residency; D009774:Obstetrics / Q000379:methods*; D011247:Pregnancy; D013781:Texas; D014463:Ultrasonography