What is the best quality controlled Pcr inactivated Dna control or Nattrol for Respiratory Validation viral reference serum panel (RVP) (Qualitative) (13 X 0.2 ml/vial)?

The NATtrol Respiratory Verification Panel 2 from Zeptometrix Inc. supplied next week by Gentaur to your Lab is the best choice!!! The catalog number is NATRVP2-BIO and the price is 886 EUR.