Objective:To investigate the therapeutic effect and safty of calcium agent and active vitamine D 3 in old male osteoporosis patients.
目的：探讨钙与阿法骨化醇治疗老年男性骨质疏松患者的疗效及安全性。
Objective:To investigate the therapeutic effect and safty of calcium agent and active vitamine D 3 in old male osteoporosis patients.
目的：探讨钙与阿法骨化醇治疗老年男性骨质疏松患者的疗效及安全性。
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