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

Year Number of Results
1998 1
1999 1
2000 2
2001 1
2002 4
2003 5
2004 5
2005 13
2006 13
2007 19
2008 33
2009 31
2010 16
2011 22
2012 23
2013 19
2014 19
2015 21
2016 15
2017 23
2018 12
2019 20
2020 12
2021 6
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Article type
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Similar articles for PMID: 18610740

305 results
Results by year
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