
掌桥科研
掌桥科研一站式科研服务平台,拥有中文文献6700万+篇,含全部中文科技核心期刊(其中,英文期刊94种、中文期刊1960种),外文文献3700万+篇,中外科技文献总计约1.1亿篇,月更新20万篇以上。掌桥科研致力于为广大科研工作者提供方便、快捷的一站式科技文献查询与下载,以及文献求助、文档翻译、文档转换、文献数据库和全球国防资讯等科研服务。
WHO's primary role is to direct international health within the United Nations' system and to lead partners in global health responses.
WHO's primary role is to direct international health within the United Nations' system and to lead partners in global health responses.