探讨了胆红素结石成石的现代研究机理。
The literature study deals with the epidemiology of cholelithiasis.
目的：通过电镜观察胆固醇结石内的细菌形态学变化，探索细菌在成石中的作用。
Objective: to observe the morphological change of bacteria in the cholesterol stone under electron microscope and to explore the action of bacteria in the formation of stone.
目的进一步明确维生素d和维生素k与肾结石的关系，探讨成石机制。
Objective To investigate the relationship between kidney calculi and Vitamin D3 aswell as Vitamin k.
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