Chemical imaging and machine learning for sub‐classification of oesophageal tissue histology oleh Abigail Keogan, Thi Nguyet Que Nguyen, James J. Phelan, Naoimh O'Farrell, Niamh Lynam‐Lennon, Brendan Doyle, Dermot O'Toole, John V. Reynolds, Jacintha O'Sullivan, Aidan D. Meade