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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1991 1
1995 1
1996 1
1999 1
2001 1
2003 3
2004 5
2005 2
2006 4
2007 8
2008 5
2009 5
2010 10
2011 5
2012 9
2013 16
2014 14
2015 10
2016 17
2017 22
2018 31
2019 25
2020 25
2021 31
2022 24
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260 results
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Page 1
4-(9,10-Dioxo-9,10-dihydro-anthracen-1-yl)-4-oxobutanoic acid.
Li Y, Lu QS, Wei RQ, Liu XN, Li FS. Li Y, et al. Among authors: liu xn. Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 20;66(Pt 12):o3237. doi: 10.1107/S160053681004732X. Acta Crystallogr Sect E Struct Rep Online. 2010. PMID: 21589526 Free PMC article.
[Tear osmolarity and dry eye].
Pan SY, Xiao XH, Wang YZ, Liu XN, Zhu XP. Pan SY, et al. Among authors: liu xn. Zhonghua Yan Ke Za Zhi. 2011 May;47(5):475-7. Zhonghua Yan Ke Za Zhi. 2011. PMID: 21756751 Review. Chinese.
260 results