这个 cochrane review 已经指出了.
影响因子在当今中国的声势 期刊的所谓"影响因子"(impact factor)
4 impact factor without journal self cites:2.0553.
data-lemmaid="19650716">impact /a> factor),简称 b>if /b>,是 a
replacement for chronic discogenic low back pain: a cochrane
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