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Tichelli A, Gratwohl A, Würsch A, Nissen C, Speck B.Tichelli A, et al. Among authors: speck b.Blut. 1988 Feb;56(2):79-81. doi: 10.1007/BF00633468.Blut. 1988.PMID: 3422575
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Tichelli A, Gratwohl A, Nissen C, Signer E, Stebler Gysi C, Speck B.Tichelli A, et al. Among authors: speck b.Blood. 1992 Jul 15;80(2):337-45.Blood. 1992.PMID: 1627795Free article.Clinical Trial.
Kabata J, Gratwohl A, Tichelli A, John L, Speck B.Kabata J, et al. Among authors: speck b.Lab Anim Sci. 1991 Dec;41(6):613-9.Lab Anim Sci. 1991.PMID: 1667209