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

Year Number of Results
1992 1
1993 2
1994 3
1995 3
1996 2
1997 5
2000 1
2002 2
2003 2
2004 1
2005 1
2006 7
2007 4
2008 6
2009 5
2010 2
2011 4
2012 8
2013 6
2014 5
2015 15
2016 9
2017 7
2018 6
2019 6
2020 9
2021 6
2022 6
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123 results
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Page 1
Nurse-staffing levels and the quality of care in hospitals.
Needleman J, Buerhaus P, Mattke S, Stewart M, Zelevinsky K. Needleman J, et al. Among authors: mattke s. N Engl J Med. 2002 May 30;346(22):1715-22. doi: 10.1056/NEJMsa012247. N Engl J Med. 2002. PMID: 12037152 Free article.
123 results