The sonographer practitioner: one piece to the radiologist shortage puzzle.
D000407:Alabama; D006801:Humans; D019982:Organizational Case Studies; D010823:Physician Assistants; D010820:Physicians / Q000600:supply & distribution; D017009:Professional Autonomy; D011785:Quality Assurance, Health Care; D014463:Ultrasonography / Q000592:standards*