Objective To study the effects of vitamin K on bone metabolize in simulated weightlessness rats.
目的探讨维生素K对模拟失重大鼠骨质的影响，为失重骨丢失的防护提供实验依据。
Objective To Study sensitive mark of biochemistry of bone metabolize of The Endemic Fluorosis by epidemiology examine and lab check up in high fluorine area of drinking water.
目的对饮水型高氟病区进行流行病学调查及实验室检测，研究地方性氟中毒患者骨代谢的生化敏感标志物。
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