Methods: Seek interrelation between dust dose and morbidity level with the method of life table.
方法：应用寿命表法求得接尘剂量与发病水平的关系。
Objective To study the change of the level of solo-hydroxyproline in blood after inhaling dust.
目的研究接尘工人血清游离羟脯氨酸含量的变化。
Objective To study the change of the level of solo-hydroxyproline in blood after inhaling dust.
目的研究接尘工人血清游离羟脯氨酸含量的变化。
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