More than just counting eosinophils: proximal oesophageal involvement and subepithelial sclerosis are major diagnostic criteria for eosinophilic oesophagitis. - Lee, Stephen; de Boer, W. Bastiaan; Naran, Anupam; Leslie, Connull; Raftopoulous, Spiro; Hooi Ee; Kumarasinghe, M. Priyanthi (Journal of Clinical Pathology, 2010)