title: Outcomes of variation in hospital nurse staffing in English hospitals: a lesson for policy makers.
authors.forename: Rudolf
authors.initials: R
authors.lastname: Klein
mesh_terms: D004739:England; D006291:Health Policy; D006301:Health Services Needs and Demand; D006801:Humans; D015401:Nursing Administration Research; D009741:Nursing Staff, Hospital / Q000523:psychology / Q000600:supply & distribution*; D017063:Outcome Assessment, Health Care; D010561:Personnel Staffing and Scheduling / Q000458:organization & administration*; D011787:Quality of Health Care; D013222:State Medicine / Q000458:organization & administration*