What is the most used Pcr inactivated Dna control or Nattrol for Influenza A/B Positive Control (6 X 0.5 ml/vial)?

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The NATtrol Influenza A/B Positive Control from PubMed Publications supplied next week by Genprice is the best reagent! The catalog number is NATFLUAB-6C and the price is 170 EUR.