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

Year Number of Results
2004 1
2005 2
2006 1
2007 1
2008 2
2009 2
2010 4
2011 3
2012 5
2013 5
2014 7
2015 12
2016 11
2017 14
2018 15
2019 18
2020 20
2021 4
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109 results
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Page 1
Are nitrogen-to-phosphorus ratios of Chinese lakes actually increasing?
Qin B, Zhang Y, Zhu G, Gong Z, Deng J, Hamilton DP, Gao G, Shi K, Zhou J, Shao K, Zhu M, Zhou Y, Tang X, Li L. Qin B, et al. Among authors: zhang y. Proc Natl Acad Sci U S A. 2020 Sep 1;117(35):21000-21002. doi: 10.1073/pnas.2013445117. Proc Natl Acad Sci U S A. 2020. PMID: 32887177 No abstract available.
109 results
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