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

Year Number of Results
1954 1
1955 1
1958 1
1959 1
1960 1
1961 2
1962 1
1965 5
1966 10
1967 15
1968 31
1969 21
1970 28
1971 29
1972 27
1973 34
1974 28
1975 46
1976 116
1977 100
1978 39
1979 35
1980 26
1981 23
1982 14
1983 16
1984 16
1985 31
1986 35
1987 25
1988 25
1989 20
1990 26
1991 31
1992 29
1993 22
1994 25
1995 35
1996 40
1997 57
1998 60
1999 51
2000 60
2001 66
2002 49
2003 77
2004 87
2005 96
2006 103
2007 110
2008 157
2009 185
2010 220
2011 270
2012 344
2013 374
2014 352
2015 343
2016 360
2017 375
2018 332
2019 150
2020 3
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Publication date

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4,643 results
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Page 1
Depression and anxiety in patients with COPD
Yohannes AM and Alexopoulos GS. Eur Respir Rev 2014 - Review. PMID 25176970 Free PMC article.
4,643 results
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