{HEAD ~ Six new cell lines} of {TAIL ~ Acari}: Ixodidae are provided, four from embryonic tissue of Dermacentor variabilis and two from embryonic tissue of Dermacentor parumapertus; and the use of these cell lines for replicating representative microorganisms is shown 
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{ HEAD ~ Six new cell lines } of { TAIL ~ Acari } : Ixodidae are provided , four from embryonic tissue of Dermacentor variabilis and two from embryonic tissue of Dermacentor parumapertus ; and the use of these cell lines for replicating representative microorganisms is shown
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