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Table representation of search results timeline featuring number of search results per year.
Year
Number of Results
1958
1
1963
1
1964
2
1965
30
1966
127
1967
176
1968
215
1969
235
1970
281
1971
305
1972
282
1973
325
1974
345
1975
311
1976
333
1977
341
1978
348
1979
334
1980
322
1981
332
1982
387
1983
398
1984
449
1985
476
1986
462
1987
406
1988
514
1989
504
1990
541
1991
530
1992
552
1993
596
1994
645
1995
638
1996
612
1997
610
1998
633
1999
632
2000
669
2001
648
2002
673
2003
682
2004
620
2005
625
2006
782
2007
889
2008
870
2009
929
2010
981
2011
887
2012
923
2013
962
2014
1020
2015
1046
2016
994
2017
923
2018
870
2019
851
2020
633
2021
425
2022
54
2023
30
2024
209
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Page 1
The autonomic nervous system and pain.
Haugen FP.
Haugen FP.
Anesthesiology. 1968 Jul-Aug;29(4):785-92. doi: 10.1097/00000542-196807000-00022.
Anesthesiology. 1968.
PMID: 4875707
Free article.
Review.
No abstract available.
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Adaptive Clinical Trial
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