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  篇名 作者 主题词 文摘
          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z    
     
 
NRC Research Press  ( 16 Titles / 3,232 Abstracts )
National Institute of Science Communication and Information Resources  ( 7 Titles / 1,640 Abstracts )
Nature Publishing Group  ( 36 Titles / 49,659 Abstracts )
Nelson Publishing  ( 6 Titles / 7,944 Abstracts )
New York University School of Law  ( 5 Titles / 138 Abstracts )
North Carolina State University  ( 5 Titles / 818 Abstracts )
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