牛黄的现代研究(一):回顾与展望*

张程亮,向东,刘东

Modern Research of Calculus Bovis (First): Retrospect and Prospect

Chengliang ZHANG,Dong XIANG,Dong LIU

现代牛黄及其替代品研究论文总数所占比例

Proportion of total research literature of Calculus Bovis and its substitutes in modern times