证据群(evidence body)质量评价方法主要是根据grade方法,随机对照
wind scale /wnd/ numerical scale of wind force, such as the
采用 grade方法对证据体进行质量评价(2)慢性期维持治疗结局指标,包括
grade分级标准
talcum powder paper-making grade 1250mesh
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