title: A nurse staffing system based upon assignment difficulty.
mesh_terms: D008962:Models, Theoretical; D009730:Nursing Assessment; D009738:Nursing Service, Hospital / Q000458:organization & administration; D009741:Nursing Staff, Hospital / Q000600:supply & distribution*; D010347:Patient Care Planning; D010559:Personnel Management / Q000379:methods*; D010561:Personnel Staffing and Scheduling / Q000379:methods*; D011787:Quality of Health Care; D013647:Task Performance and Analysis