title: A new career ladder for sonographers.
authors.forename: Michelle
authors.initials: M
authors.lastname: Bierig
mesh_terms: D002309:Cardiology / Q000592:standards*; D002322:Career Mobility; D004452:Echocardiography; D017408:Guidelines as Topic / Q000592:standards*; D011871:Radiology / Q000592:standards*; D014481:United States; D000078329:Workforce