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

Year Number of Results
1868 1
1909 1
1918 1
1935 1
1943 1
1946 1
1948 1
1954 1
1957 2
1958 2
1959 1
1960 1
1965 1
1966 1
1967 2
1968 1
1969 6
1970 2
1971 2
1972 1
1973 1
1974 1
1978 1
1982 1
1983 1
1984 2
1990 1
1993 1
1995 1
1997 1
1999 1
2003 1
2004 1
2005 2
2006 2
2007 2
2008 8
2009 37
2012 1
2013 2
2017 1
2020 0
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Similar Articles for PMID: 19171606

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Page 1
School recess and group classroom behavior.
Barros RM, Silver EJ, Stein RE. Barros RM, et al. Pediatrics. 2009 Feb;123(2):431-6. doi: 10.1542/peds.2007-2825. Pediatrics. 2009. PMID: 19171606
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