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Results by year

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

Year Number of Results
1997 1
1999 1
2000 1
2002 1
2003 2
2004 2
2005 2
2006 3
2007 3
2008 4
2009 4
2010 5
2011 12
2012 11
2013 10
2014 16
2015 10
2016 11
2017 16
2018 7
2019 8
2020 15
2021 10
2022 22
2023 6
2024 0

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Similar articles for PMID: 21646416

157 results

Results by year

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157 results