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

Year Number of Results
1957 1
1962 1
1963 1
1966 1
1967 4
1968 2
1969 3
1970 2
1971 4
1972 3
1973 1
1974 4
1975 1
1976 1
1977 3
1978 3
1980 5
1982 3
1983 6
1984 2
1985 1
1986 3
1987 3
1988 5
1989 5
1990 4
1991 4
1992 7
1993 7
1994 16
1995 19
1996 22
1997 25
1998 16
1999 17
2000 20
2001 21
2002 14
2003 16
2004 16
2005 16
2006 15
2007 17
2008 22
2009 15
2010 9
2011 22
2012 23
2013 12
2014 20
2015 15
2016 22
2017 25
2018 8
2019 18
2020 11
2021 1
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 9527399

520 results
Results by year
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