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. 2021 Apr 23;12(12):3539–3547. doi: 10.7150/jca.51609

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Keyword analytic data for research and publications on CDK4/6 inhibitors. (a) Analysis of co-occurring keywords in the past two decades. (b) Keyword density map for the past 20 years. (c) Analysis of co-occurring keywords in data published between 2001 and 2010. (d) Analysis of co-occurring keywords in data published between 2011 and 2020. The dots represent the keywords and the larger dots indicate a higher occurred frequency of the keywords, while the clusters are labeled using different colors and the links represent the co-occurrence of the keywords.