One nurse, two nurse ... red nurse, blue nurse.
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Curtin
D006801:Humans; D007591:Joint Commission on Accreditation of Healthcare Organizations; D009740:Nursing Staff / Q000600:supply & distribution*; D009745:Nursing, Supervisory / Q000592:standards*; D010561:Personnel Staffing and Scheduling / Q000592:standards*; D014481:United States