AJA had more references and relatively concentrated cited journal categories, and citing half-life of AJA was longer than that of NJA.
AJA篇均引文数较高，引用文献半衰期较长，引用期刊相对集中。
In an article published in the journal Science, four scholars say racial categories need to be phased out.
调整语序、用词：在《科学》杂志上发表的一篇文章中，四位学者表示，种族的划分需要被逐步淘汰。
In an article published in the journal Science, four scholars say racial categories need to be phased out.
调整语序、用词：在《科学》杂志上发表的一篇文章中，四位学者表示，种族的划分需要被逐步淘汰。
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