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

Year Number of Results
1987 1
1989 1
1994 1
1998 4
1999 2
2000 1
2001 3
2002 2
2003 3
2004 6
2005 9
2006 9
2007 4
2008 7
2009 9
2010 13
2011 14
2012 16
2013 19
2014 22
2015 14
2016 11
2017 13
2018 9
2019 40
2020 49
2021 24
Text availability
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Article type
Publication date

Similar articles for PMID: 9875997

270 results
Results by year
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270 results