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

Year Number of Results
1951 1
1952 2
1953 3
1954 5
1955 9
1956 12
1957 16
1958 20
1959 18
1960 8
1961 8
1962 6
1964 2
1965 1
1966 54
1967 84
1968 100
1969 115
1970 104
1971 117
1972 129
1973 126
1974 121
1975 85
1976 72
1977 72
1978 103
1979 83
1980 73
1981 76
1982 75
1983 81
1984 64
1985 64
1986 72
1987 61
1988 73
1989 53
1990 51
1991 62
1992 50
1993 43
1994 41
1995 45
1996 39
1997 43
1998 29
1999 37
2000 37
2001 40
2002 29
2003 29
2004 30
2005 28
2006 38
2007 38
2008 44
2009 32
2010 36
2011 35
2012 26
2013 34
2014 44
2015 34
2016 14
2017 16
2018 24
2019 17
2020 14
2021 12
2022 6
2023 3
2024 8

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3,201 results

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Page 1
How to assess sympathetic activity in humans.
Grassi G, Esler M. Grassi G, et al. J Hypertens. 1999 Jun;17(6):719-34. doi: 10.1097/00004872-199917060-00001. J Hypertens. 1999. PMID: 10459867 Review.
Biological bases of childhood shyness.
Kagan J, Reznick JS, Snidman N. Kagan J, et al. Science. 1988 Apr 8;240(4849):167-71. doi: 10.1126/science.3353713. Science. 1988. PMID: 3353713
Catecholamine metabolism, depression and stress.
Maas JW, Dekirmenjian H, Fawcett J. Maas JW, et al. Nature. 1971 Apr 2;230(5292):330-1. doi: 10.1038/230330a0. Nature. 1971. PMID: 5549410 No abstract available.
3,201 results