Dr. Titus Kwok and Dr. Pram Sirimanna are specialist liver, pancreas, and upper gastrointestinal (GI) surgeons based in Sydney. They practice between Concord Repatriation General Hospital, Strathfield Private Hospital and Prince of Wales Private hospitals. They specialise in complex cancers and benign conditions of the liver, biliary system, stomach, and pancreas. They also provide general surgery operations including inguinal hernia, hiatus hernia, incisional hernia and cholecystectomy procedures.