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

Year Number of Results
1967 2
1970 3
1972 1
1974 1
1975 2
1976 2
1977 1
1978 26
1979 73
1980 114
1981 133
1982 161
1983 209
1984 244
1985 273
1986 375
1987 335
1988 311
1989 344
1990 375
1991 399
1992 472
1993 398
1994 406
1995 407
1996 492
1997 489
1998 429
1999 398
2000 364
2001 460
2002 422
2003 365
2004 360
2005 443
2006 489
2007 614
2008 603
2009 660
2010 708
2011 944
2012 1047
2013 1131
2014 1040
2015 1105
2016 1044
2017 990
2018 1081
2019 814
2020 127
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Publication date

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20,313 results
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Page 1
Prospects of HA-based universal influenza vaccine.
Hashem AM. Hashem AM. Biomed Res Int. 2015;2015:414637. doi: 10.1155/2015/414637. Epub 2015 Feb 15. Biomed Res Int. 2015. PMID: 25785268 Free PMC article. Review.
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