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

Year Number of Results
1966 1
1980 3
1981 2
1982 6
1983 4
1984 9
1985 9
1986 15
1987 8
1988 6
1989 31
1990 34
1991 20
1992 25
1993 38
1994 36
1995 53
1996 60
1997 71
1998 83
1999 95
2000 106
2001 131
2002 185
2003 248
2004 292
2005 404
2006 436
2007 502
2008 624
2009 672
2010 763
2011 894
2012 1130
2013 1344
2014 1584
2015 1715
2016 1827
2017 2027
2018 2313
2019 2605
2020 612
Text availability
Article attribute
Article type
Publication date

Search Results

18,874 results
Results by year
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Page 1
The role of oxygen in cluster headache
Guo XN, et al. Med Gas Res 2019 - Review. Among authors: Zhao HR. PMID 31898608
Genome studies must account for history
Richardson SS, et al. Science 2019. Among authors: Zhao H. PMID 31857476
18,874 results
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