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Results by year

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

Year Number of Results
1988 1
1994 2
1996 1
1997 2
1998 2
1999 5
2000 3
2001 15
2002 3
2003 11
2004 15
2005 29
2006 42
2007 47
2008 33
2009 28
2010 19
2011 21
2012 13
2013 8
2014 6
2015 6
2016 3
2017 2
2018 6
2019 5
2020 2
2021 1
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Similar articles for PMID: 17634440

297 results
Results by year
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297 results