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Titus RG, Müller I, Kimsey P, Cerny A, Behin R, Zinkernagel RM, Louis JA.Titus RG, et al. Among authors: cerny a.Eur J Immunol. 1991 Mar;21(3):559-67. doi: 10.1002/eji.1830210305.Eur J Immunol. 1991.PMID: 1672641