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Brennan KA, Schenk S.Brennan KA, et al. Among authors: schenk s.Psychopharmacology (Berl). 2006 Jan;184(2):239-46. doi: 10.1007/s00213-005-0278-y. Epub 2005 Dec 16.Psychopharmacology (Berl). 2006.PMID: 16362399
van de Wetering R, Schenk S.van de Wetering R, et al. Among authors: schenk s.Addict Biol. 2020 Sep;25(5):e12814. doi: 10.1111/adb.12814. Epub 2019 Aug 1.Addict Biol. 2020.PMID: 31373119