参考文献

ZHEJIANG JIANFENG HAIZHOU PHARMACEUTICAL CO., LTD.; SHANGHAI KUOIKEE LABORATORIES CO., LTD.; Shi, Mingfeng; Li, Dan; Xu, Ling Patent: US2013/90475 A1, 2013 ; Location in patent: Paragraph 0035; 0036; 0037; 0038 ;