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

Year Number of Results
1979 6
1980 15
1981 18
1982 26
1983 25
1984 40
1985 66
1986 56
1987 68
1988 72
1989 104
1990 121
1991 135
1992 171
1993 204
1994 245
1995 306
1996 319
1997 397
1998 419
1999 445
2000 572
2001 604
2002 802
2003 985
2004 1303
2005 1721
2006 2049
2007 2362
2008 2717
2009 3344
2010 3911
2011 4601
2012 5415
2013 6488
2014 7570
2015 8624
2016 9021
2017 9963
2018 11521
2019 13266
2020 15718
2021 6972
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109,982 results
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Page 1
Hyaluronic acid in ocular drug delivery.
Zhang X, Wei D, Xu Y, Zhu Q. Zhang X, et al. Carbohydr Polym. 2021 Jul 15;264:118006. doi: 10.1016/j.carbpol.2021.118006. Epub 2021 Mar 29. Carbohydr Polym. 2021. PMID: 33910737 Review.
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