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Table representation of search results timeline featuring number of search results per year.
Year
Number of Results
1965
1
1966
2
1967
1
1968
2
1969
24
1970
78
1971
76
1972
88
1973
126
1974
132
1975
132
1976
128
1977
128
1978
150
1979
156
1980
178
1981
218
1982
272
1983
294
1984
361
1985
360
1986
309
1987
334
1988
332
1989
394
1990
453
1991
436
1992
535
1993
483
1994
377
1995
717
1996
1054
1997
1162
1998
1134
1999
1024
2000
1047
2001
1037
2002
986
2003
844
2004
776
2005
823
2006
869
2007
811
2008
779
2009
726
2010
738
2011
796
2012
780
2013
740
2014
805
2015
722
2016
675
2017
573
2018
576
2019
549
2020
436
2021
338
2022
112
2023
84
2024
94
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Page 1
Beta-adrenergic agonists. A problem.
Skorodin MS.
Skorodin MS.
Chest. 1993 May;103(5):1587-90. doi: 10.1378/chest.103.5.1587.
Chest. 1993.
PMID: 8097992
Review.
No abstract available.
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Adaptive Clinical Trial
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