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Results by year

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

Year Number of Results
1979 1
1997 1
2001 1
2005 2
2006 3
2007 2
2008 8
2009 10
2010 15
2011 20
2012 27
2013 21
2014 21
2015 23
2016 33
2017 28
2018 34
2019 21
2020 16
2021 25
2022 20
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 19838436

282 results
Results by year
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282 results