PharmaJet’s Stratis® Needle-Free Injector Receives WHO PQS Certification as a Pre-qualified Delivery Device for Vaccine Administration GOLDEN, Colo. – Feb. 20, 2013 – PharmaJet Inc. has become the first and only needle-free injection company to receive Performance, Quality and Safety (PQS) pre-qualified certification from the World Health Organization (WHO). February 20, 2013NewsBy Pharmajet Administrator