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

Year Number of Results
1974 1
1982 1
1991 1
2003 1
2004 1
2005 1
2006 8
2007 7
2008 16
2009 12
2010 8
2011 14
2012 15
2013 22
2014 13
2015 9
2016 9
2017 19
2018 12
2019 15
2020 28
2021 31
2022 19
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Similar articles for PMID: 18520869

226 results
Results by year
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226 results