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

Year Number of Results
1975 1
1989 1
1990 2
1991 1
1992 5
1993 9
1994 21
1995 22
1996 23
1997 27
1998 30
1999 36
2000 56
2001 94
2002 173
2003 208
2004 213
2005 248
2006 273
2007 308
2008 378
2009 428
2010 400
2011 354
2012 379
2013 285
2014 13
2021 0
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Publication date

PubMed Links for id: 478

3,604 results
Results by year
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3,604 results