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

Year Number of Results
1945 3
1946 6
1947 8
1948 4
1949 14
1951 18
1952 36
1953 44
1954 36
1955 59
1956 61
1957 65
1958 50
1959 78
1960 53
1961 63
1962 41
1964 8
1965 53
1966 89
1967 92
1968 92
1969 94
1970 94
1971 106
1972 116
1973 178
1974 206
1975 226
1976 254
1977 288
1978 294
1979 317
1980 361
1981 387
1982 411
1983 413
1984 393
1985 404
1986 411
1987 405
1988 440
1989 426
1990 456
1991 449
1992 430
1993 475
1994 411
1995 478
1996 473
1997 416
1998 425
1999 396
2000 408
2001 349
2002 367
2003 399
2004 364
2005 460
2006 483
2007 436
2008 460
2009 431
2010 422
2011 438
2012 429
2013 401
2014 428
2015 391
2016 397
2017 340
2018 294
2019 341
2020 318
2021 242
2022 149
2023 113
2024 19

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19,410 results

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Page 1
Molecular recognition of morphine and fentanyl by the human μ-opioid receptor.
Zhuang Y, Wang Y, He B, He X, Zhou XE, Guo S, Rao Q, Yang J, Liu J, Zhou Q, Wang X, Liu M, Liu W, Jiang X, Yang D, Jiang H, Shen J, Melcher K, Chen H, Jiang Y, Cheng X, Wang MW, Xie X, Xu HE. Zhuang Y, et al. Cell. 2022 Nov 10;185(23):4361-4375.e19. doi: 10.1016/j.cell.2022.09.041. Cell. 2022. PMID: 36368306 Free article.
Morphine reduces the interest for natural rewards.
Piccin A, Courtand G, Contarino A. Piccin A, et al. Psychopharmacology (Berl). 2022 Aug;239(8):2407-2419. doi: 10.1007/s00213-022-06131-7. Epub 2022 Apr 8. Psychopharmacology (Berl). 2022. PMID: 35396673
Paroxetine effects on morphine analgesic tolerance in rats.
Sahebi Vaighan N, Parhiz S, Sabetkasaei M, Moini Zanjani T, Zarei M. Sahebi Vaighan N, et al. Scand J Pain. 2021 Jul 26;22(1):186-192. doi: 10.1515/sjpain-2021-0009. Print 2022 Jan 27. Scand J Pain. 2021. PMID: 34298592 Free article.
Influence of morphine on host immunity.
Chang MC, Fan SZ, Hsiao PN, Cheng WF, Sun WZ. Chang MC, et al. Acta Anaesthesiol Taiwan. 2011 Sep;49(3):105-8. doi: 10.1016/j.aat.2011.08.003. Epub 2011 Sep 22. Acta Anaesthesiol Taiwan. 2011. PMID: 21982172 Review.
19,410 results
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