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

Year Number of Results
1975 2
1978 5
1981 1
1982 2
1985 1
1987 2
1988 3
1989 3
1990 1
1991 1
1992 3
1993 1
1994 3
1996 1
1998 1
2000 1
2002 4
2003 1
2004 1
2005 2
2006 1
2007 1
2021 0
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40 results
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Page 1
[Opioid peptides. Ironman, mother's milk and toad's skin].
Strassburger W, Friderichs E. Strassburger W, et al. Among authors: friderichs e. Pharm Unserer Zeit. 2002;31(1):52-8. doi: 10.1002/1615-1003(200201)31:1<52::AID-PAUZ52>3.0.CO;2-B. Pharm Unserer Zeit. 2002. PMID: 11852657 Review. German. No abstract available.
Reversibility of opioid receptor occupancy of buprenorphine in vivo.
Englberger W, Kögel B, Friderichs E, Strassburger W, Germann T. Englberger W, et al. Among authors: friderichs e. Eur J Pharmacol. 2006 Mar 18;534(1-3):95-102. doi: 10.1016/j.ejphar.2006.01.022. Epub 2006 Feb 21. Eur J Pharmacol. 2006. PMID: 16490191
Actions of tramadol on micturition in awake, freely moving rats.
Pandita RK, Pehrson R, Christoph T, Friderichs E, Andersson KE. Pandita RK, et al. Among authors: friderichs e. Br J Pharmacol. 2003 Jun;139(4):741-8. doi: 10.1038/sj.bjp.0705297. Br J Pharmacol. 2003. PMID: 12812997 Free PMC article.
(-)-(1R,2R)-3-(3-dimethylamino-1-ethyl-2-methyl-propyl)-phenol hydrochloride (tapentadol HCl): a novel mu-opioid receptor agonist/norepinephrine reuptake inhibitor with broad-spectrum analgesic properties.
Tzschentke TM, Christoph T, Kögel B, Schiene K, Hennies HH, Englberger W, Haurand M, Jahnel U, Cremers TI, Friderichs E, De Vry J. Tzschentke TM, et al. Among authors: friderichs e. J Pharmacol Exp Ther. 2007 Oct;323(1):265-76. doi: 10.1124/jpet.107.126052. Epub 2007 Jul 26. J Pharmacol Exp Ther. 2007. PMID: 17656655
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