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Liu Y, Mellin C, Björk L, Svensson B, Csöregh I, Helander A, Kenne L, Andén NE, Hacksell U.Liu Y, et al. Among authors: helander a.J Med Chem. 1989 Oct;32(10):2311-8. doi: 10.1021/jm00130a015.J Med Chem. 1989.PMID: 2795604
Karlén A, Helander A, Kenne L, Hacksell U.Karlén A, et al. Among authors: helander a.J Med Chem. 1989 Apr;32(4):765-74. doi: 10.1021/jm00124a007.J Med Chem. 1989.PMID: 2522990
Karlén A, Hacksell U, Helander A, Kenne L.Karlén A, et al. Among authors: helander a.Prog Clin Biol Res. 1989;291:281-4.Prog Clin Biol Res. 1989.PMID: 2524840No abstract available.
Helander A, Kenne L.Helander A, et al.Carbohydr Res. 1991 Dec 16;221:245-51. doi: 10.1016/0008-6215(91)80060-z.Carbohydr Res. 1991.PMID: 1726197No abstract available.