SAN DIEGO--(BUSINESS WIRE)--Today, Respiratory Technology Corporation (dba Restech) announced that The Oregon Clinic, of Portland, Oregon, has adopted the Restech Dx-pH Measurement System™ to detect acid reflux in the airway. The Restech Dx-System is utilized by The Oregon Clinic, Gastrointestinal & Minimally Invasive Surgery Division’s (GMIS) Foregut Program for the diagnosis and treatment of all diseases of the upper digestive system.