The 4th Seminar: alphaONE Wireless pH Observation SessionLocation: Royal London Hospital Endoscopy unit, London, UKDate: 09:30-12:30, 19th September 2019Faculty: Dr. Philip Woodland The 4th Seminar: alpHaFLEX Impedance pH Observation SessionLocation: Wingate Institute of Neurogastroenterology, London, UKDate: 13:0...