SCREENING FOR HEAD AND NECK TUMOURS IN PATIENTS WITH OESOPHAGEAL SQUAMOUS CELL CARCINOMA AND VICE VERSA: A NATIONWIDE SURVEY AMONG MEDICAL SPECIALISTS - van Tilburg, L.; van den Ban, S.A.; van de Ven, S.E.; Sewnaik, A.; Bruno, M.J.; Spaander, M.C.; Baatenburg de Jong, R.J.; Koch, A.D. (Endoscopy, 2022)