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

Year Number of Results
1840 1
1953 2
1965 1
1972 1
1974 1
1976 3
1977 1
1978 1
1979 3
1981 1
1983 1
1984 4
1986 1
1987 2
1989 1
1990 4
1991 1
1992 2
1993 3
1994 4
1995 6
1996 4
1997 5
1998 1
1999 6
2000 3
2001 7
2002 8
2003 4
2004 2
2005 6
2006 4
2007 7
2008 6
2009 7
2010 2
2011 14
2012 5
2013 8
2014 11
2015 8
2016 11
2017 8
2018 8
2019 7
2020 9
2021 2
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 21918130

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