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

Year Number of Results
1967 1
1972 1
1974 1
1975 1
1976 1
1977 1
1985 1
1986 1
1987 2
1990 1
1991 1
1992 1
1997 1
1999 1
2000 1
2004 4
2005 1
2006 3
2007 3
2008 3
2009 10
2010 12
2011 12
2012 1
2014 3
2016 2
2017 2
2019 5
2020 3
2021 1
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76 results
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Page 1
Extraction and purification of cephalosporin antibiotics.
Ghosh AC, Mathur RK, Dutta NN. Ghosh AC, et al. Among authors: mathur rk. Adv Biochem Eng Biotechnol. 1997;56:111-45. doi: 10.1007/BFb0103031. Adv Biochem Eng Biotechnol. 1997. PMID: 8939060 Review.
76 results
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