title: Expanding role and legal liability.
mesh_terms: D002983:Clinical Competence; D006801:Humans; D008318:Malpractice / Q000331:legislation & jurisprudence*; D008505:Medical Staff, Hospital / Q000331:legislation & jurisprudence; D009741:Nursing Staff, Hospital / Q000331:legislation & jurisprudence*; D012380:Role; D014481:United States