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

Year Number of Results
1905 1
1933 1
1948 1
1956 1
1966 1
1967 1
1968 6
1969 6
1970 11
1971 5
1972 3
1973 7
1974 2
1975 13
1976 11
1977 11
1978 7
1979 7
1980 17
1981 16
1982 7
1983 13
1984 21
1985 9
1986 15
1987 17
1988 15
1989 24
1990 10
1991 21
1992 15
1993 15
1994 16
1995 17
1996 23
1997 23
1998 20
1999 14
2000 16
2001 13
2002 11
2003 11
2004 11
2005 15
2006 9
2007 8
2008 12
2009 10
2010 12
2011 10
2012 8
2013 7
2014 12
2015 11
2016 7
2017 5
2018 7
2019 7
2020 7
2021 9
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 9867156

625 results
Results by year
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625 results