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

Year Number of Results
1945 1
1946 1
1948 3
1950 1
1951 36
1952 54
1953 48
1954 45
1955 47
1956 80
1957 72
1958 69
1959 24
1961 1
1962 1
1964 8
1965 60
1966 140
1967 145
1968 135
1969 175
1970 132
1971 181
1972 167
1973 154
1974 168
1975 143
1976 110
1977 114
1978 90
1979 102
1980 104
1981 104
1982 118
1983 121
1984 150
1985 141
1986 106
1987 125
1988 115
1989 123
1990 113
1991 132
1992 143
1993 150
1994 179
1995 172
1996 124
1997 163
1998 176
1999 193
2000 185
2001 247
2002 249
2003 280
2004 310
2005 473
2006 656
2007 804
2008 725
2009 805
2010 853
2011 767
2012 851
2013 863
2014 915
2015 816
2016 770
2017 767
2018 703
2019 372
2020 7
Text availability
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16,348 results
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Nagele P, et al. Anesthesiology 2014. PMID 24448089 Free PMC article.
16,348 results
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