Nurse practitioners in the emergency department.
D002983:Clinical Competence / Q000592:standards*; D003406:Credentialing / Q000592:standards*; D004511:Education, Nursing, Graduate / Q000592:standards*; D004635:Emergency Medicine / Q000193:education / Q000592:standards; D004636:Emergency Service, Hospital; D006801:Humans; D008504:Medical Staff Privileges; D009722:Nurse Practitioners / Q000193:education / Q000592:standards; D012956:Societies, Nursing; D014481:United States