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

Year Number of Results
1989 1
1990 3
1991 1
1992 4
1993 9
1994 7
1995 14
1996 13
1997 27
1998 19
1999 36
2000 47
2001 53
2002 60
2003 79
2004 105
2005 151
2006 126
2007 126
2008 118
2009 98
2010 150
2011 332
2012 147
2013 98
2014 80
2015 79
2016 76
2017 63
2018 57
2019 48
2020 47
2021 14
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PubMed Citations for id: 11970143

1,973 results
Results by year
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