Results: Nosocomial infection incidence in the surgical ward indicated the increasing trend following the increase of the risk factor exponent.
结果：外科系统和各专科的医院感染发生率随着危险指数等级的增加而呈上升趋势。
Results: Nosocomial infection incidence in the surgical ward indicated the increasing trend following the increase of the risk factor exponent.
结果：外科系统和各专科的医院感染发生率随着危险指数等级的增加而呈上升趋势。
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