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Table representation of search results timeline featuring number of search results per year.
Year
Number of Results
1945
10
1946
54
1947
34
1948
27
1949
25
1950
22
1951
29
1952
30
1953
39
1954
39
1955
21
1956
45
1957
58
1958
57
1959
39
1960
32
1961
36
1962
45
1963
62
1964
70
1965
40
1966
23
1967
36
1968
45
1969
58
1970
55
1971
32
1972
36
1973
43
1974
47
1975
55
1976
34
1977
47
1978
48
1979
48
1980
56
1981
36
1982
47
1983
36
1984
46
1985
57
1986
61
1987
71
1988
67
1989
144
1990
132
1991
164
1992
139
1993
132
1994
118
1995
132
1996
124
1997
93
1998
113
1999
131
2000
165
2001
206
2002
255
2003
227
2004
186
2005
184
2006
191
2007
220
2008
239
2009
236
2010
255
2011
273
2012
279
2013
311
2014
313
2015
282
2016
265
2017
244
2018
277
2019
289
2020
283
2021
304
2022
289
2023
217
2024
110
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Page 1
Green-sky thinking.
[No authors listed]
[No authors listed]
Nature. 2016 Feb 18;530(7590):253. doi: 10.1038/530253a.
Nature. 2016.
PMID: 26887454
No abstract available.
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[Medical drones: innovative therapeutic strategies].
Biberthaler P.
Biberthaler P.
Unfallchirurg. 2021 Dec;124(12):957-958. doi: 10.1007/s00113-021-01099-z. Epub 2021 Nov 30.
Unfallchirurg. 2021.
PMID: 34846556
German.
No abstract available.
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Helicopters.
Wilson A, Cross F.
Wilson A, et al.
J R Soc Med. 1992 Jan;85(1):1-3. doi: 10.1177/014107689208500101.
J R Soc Med. 1992.
PMID: 1548646
Free PMC article.
No abstract available.
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Helicopter air ambulance services.
Ruskin KJ.
Ruskin KJ.
Curr Opin Anaesthesiol. 2019 Apr;32(2):252-256. doi: 10.1097/ACO.0000000000000700.
Curr Opin Anaesthesiol. 2019.
PMID: 30817403
Review.
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In-flight neurologic emergencies.
Moss AJ, Longstreth WT Jr.
Moss AJ, et al.
Neurology. 2002 Jun 25;58(12):1717. doi: 10.1212/wnl.58.12.1717.
Neurology. 2002.
PMID: 12084867
No abstract available.
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