告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。
保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。
AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。
Bielińska A, Wiater A, Hulanicka D
Acta Biochim Pol. 1984;31(1):77-82.
Urea inhibits the expression of those cysteine genes which are regulated by the cysB gene products. It has no effect, however, on the constitutively expressed cysE gene.