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

Year Number of Results
1831 3
1842 2
1845 1
1849 1
1874 1
1875 1
1876 1
1877 3
1878 1
1880 2
1881 1
1882 3
1887 1
1888 6
1889 9
1890 3
1894 2
1895 1
1896 1
1898 1
1901 1
1932 2
1935 1
1937 1
1941 1
1946 1
1949 1
1951 1
1952 1
1954 1
1955 1
1956 1
1957 3
1958 1
1961 2
1962 3
1963 3
1964 15
1965 6
1966 7
1967 6
1968 9
1969 2
1970 14
1971 15
1972 16
1973 22
1974 16
1975 16
1976 25
1977 24
1978 36
1979 23
1980 20
1981 28
1982 45
1983 25
1984 67
1985 51
1986 52
1987 64
1988 73
1989 52
1990 80
1991 75
1992 85
1993 75
1994 103
1995 118
1996 119
1997 128
1998 176
1999 161
2000 195
2001 232
2002 253
2003 331
2004 395
2005 418
2006 513
2007 566
2008 638
2009 763
2010 802
2011 964
2012 1030
2013 1074
2014 1167
2015 1203
2016 1265
2017 1262
2018 1350
2019 1456
2020 1643
2021 1886
2022 1686
2023 1645
2024 1593
2025 1809
2026 765

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Page 1
Comparative Network Structures of Hikikomori (Social Withdrawal) Symptoms in Korean and Japanese Psychiatric Patients Prescribed Antidepressants: Findings From the Research on Asian Psychotropic Patterns for Antidepressants, Phase 3.
Lee E, Kim E, Yoon J, Yoon KS, Choi TY, Moon SW, Jung SW, Yoon HJ, Kim HS, Moon E, Kim Y, Yang HJ, Jeong N, Kim KW, Nakagami Y, Kyuragi S, Matsuo K, Matsushima T, Inada T, Lin SK, Sartorius N, Shinfuku N, Kato TA, Park SC. Lee E, et al. J Korean Med Sci. 2026 May 18;41(19):e139. doi: 10.3346/jkms.2026.41.e139. J Korean Med Sci. 2026. PMID: 42153230
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