1. Al Yassin TM, Toner PG. Langerhans cells in the human oesophagus. J Anat 122:435–445, 1976.
2. Armstrong D, Bennett JR, Blum AL, et al. The endoscopic assesment of esophagitis: a progress report on observer agreement. Gastroenterology 111:85–92, 1996.
3. Barlow WJ, Orlando RC. The pathogenesis of heartburn in nonerosive reflux disease: a unifying hypothesis. Gastroenterology 128:771–778, 2005.
4. Barrett NR. Chronic peptic ulcer of the oesophagus and ‘oesophagitis.’ Br J Surg 38:175–182, 1950.
5. Behar J, Sheahan DC. Histologic abnormalities in reflux esophagitis. Arch Pathol 99:387–391, 1975.