By CAMERON HENDERSON FOR THE MAIL ON SUNDAY PUBLISHED: 17:00 EDT, 23 July 2022 | UPDATED: 17:12 EDT, 23 July 2022 Artificial intelligence can dramatically improve the chances of picking up the early-warning signs of oesophageal cancer, a pioneering NHS programme has shown. The computer technology works by analysing pictures taken during a procedure known as an endoscopy, when a tiny camera...