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

Year Number of Results
1952 2
1953 2
1954 1
1955 4
1956 2
1957 1
1964 1
1965 3
1966 5
1967 6
1968 25
1969 22
1970 23
1971 21
1972 16
1973 20
1974 26
1975 13
1976 9
1977 11
1978 7
1979 13
1980 7
1981 6
1982 4
1983 18
1984 20
1985 12
1986 11
1987 20
1988 21
1989 38
1990 34
1991 36
1992 21
1993 32
1994 31
1995 35
1996 61
1997 56
1998 66
1999 38
2000 51
2001 51
2002 66
2003 78
2004 61
2005 86
2006 83
2007 88
2008 72
2009 63
2010 60
2011 61
2012 44
2013 56
2014 42
2015 32
2016 30
2017 34
2018 31
2019 17
2020 0
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1,821 results
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Page 1
The effects of combined H1 and H2 histamine antagonists on alterations in nasal airflow resistance induced by topical histamine provocation.
Havas TE, et al. J Allergy Clin Immunol 1986 - Clinical Trial. PMID 2878016
A clinical trial was undertaken to assess the effects of oral H1 (diphenhydramine hydrochloride) and H2 (cimetidine) histamine blockade on nasal resistance induced by topical histamine. ...The nasal airflow resistive response to topical histamine was then determined. Combined histamine antagonism was significantly more effective in reducing the nasal resistive response to topical histamine than H1 antagonist alone (p less than 0.0001). ...
A clinical trial was undertaken to assess the effects of oral H1 (diphenhydramine hydrochloride) and H2 (cimetidine) histamine blocka …
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