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Pichler WJ, Brander C, Mauri D, Frutig K, Wyss-Coray T.Pichler WJ, et al.Arb Paul Ehrlich Inst Bundesamt Sera Impfstoffe Frankf A M. 1994;(87):141-53; discussion 153-4.Arb Paul Ehrlich Inst Bundesamt Sera Impfstoffe Frankf A M. 1994.PMID: 7873053