By ROGER DOBSON FOR THE DAILY MAIL PUBLISHED: 20:19 EDT, 22 March 2021 | UPDATED: 20:37 EDT, 22 March 2021 An electronic ‘nose’ that sniffs out chemicals in breath may help spot early signs of oesophageal cancer, which can be linked to acid reflux. The breathalyser-type device uses sensors to identify patterns of compounds found in breath that are unique...