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

Year Number of Results
1921 1
1990 1
1994 1
1996 1
2001 1
2002 1
2003 2
2004 3
2005 1
2006 1
2007 2
2009 1
2011 3
2012 1
2013 4
2014 2
2015 5
2016 10
2017 12
2018 26
2019 28
2020 71
2021 76
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 29987168

215 results
Results by year
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