What is the safest Pcr inactivated Dna control or Nattrol for Parainfluenza Virus 4 Stock (Qualitative) (1 ml/vial)?

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The NATtrol Human Parvovirus B19 from Zeptometrix supplied next day by Genprice is the best choice! The catalog number is NATPARVO-0001 and the price is 207 EUR.