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

Year Number of Results
1941 2
1963 1
1964 1
1967 3
1968 1
1969 1
1970 2
1971 1
1972 3
1973 4
1975 4
1976 1
1977 3
1978 7
1979 8
1980 6
1981 9
1982 12
1983 5
1984 14
1985 9
1986 13
1987 11
1988 11
1989 17
1990 25
1991 16
1992 18
1993 29
1994 21
1995 25
1996 18
1997 33
1998 15
1999 19
2000 22
2001 9
2002 12
2003 9
2004 13
2005 16
2006 12
2007 15
2008 17
2009 31
2010 48
2011 39
2012 37
2013 34
2014 33
2015 30
2016 29
2017 22
2018 22
2019 17
2020 12
Text availability
Article attribute
Article type
Publication date

Similar Articles for PMID: 9561873

790 results
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