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

Year Number of Results
1806 1
1987 1
1991 1
1994 2
1995 1
1996 3
1997 1
1999 1
2001 2
2002 1
2003 2
2004 3
2005 2
2006 3
2007 7
2008 7
2009 11
2010 13
2011 23
2012 23
2013 24
2014 25
2015 33
2016 24
2017 23
2018 29
2019 15
2020 12
2021 13
2022 5
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 21810815

249 results
Results by year
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249 results