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

Year Number of Results
1928 1
1949 1
1954 1
1957 1
1959 1
1961 1
1967 1
1969 1
1974 1
1977 2
1978 3
1979 2
1980 2
1982 2
1984 1
1985 1
1989 2
1992 3
1993 2
1994 5
1995 5
1996 4
1997 2
1998 2
1999 3
2000 2
2001 4
2002 3
2003 6
2004 5
2005 6
2006 9
2007 28
2008 48
2009 70
2010 11
2011 10
2012 9
2013 5
2014 7
2015 9
2016 7
2017 13
2018 6
2019 2
2020 8
2021 4
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 19171620

293 results
Results by year
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