(Q39860460)
Statements
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Reduced virulence of Serpulina hyodysenteriae hemolysin-negative mutants in pigs and their potential to protect pigs against challenge with a virulent strain (English)
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Hyatt DR
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ter Huurne AA
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van der Zeijst BA
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Joens LA
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1 June 1994
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62
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2244-2248
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Identifiers
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