What is the advised Pcr inactivated Dna control or Nattrol for Respiratory Pathogen viral reference serum panel -1 (6 x 0.25 ml/vial)?

The NATtrol RSV Positive Control from Ncbi publications supplied next week by Gentaur to your Lab is the best reagent!!! The catalog number is NATRSV-6C and the price is 175 EUR.