1. Pernix Therapeutics Announces Ruling in Patent Litigation Concerning Zohydro ER with BeadTek  Investing News Network
  2. Pernix Therapeutics (PTX) Stock: Tanking On Patent Ruling  CNA Finance
  3. Pernix Therapeutics (PTX) Announces Ruling in Patent Litigation Concerning Zohydro ER with BeadTek  StreetInsider.com
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