TY - GEN AU - Berdal,P AU - Winther,F O AU - Myhre,E TI - Ulceration in ectopic mucosa of the esophagus SN - 0022-2151 PY - 1973///0411 KW - Biopsy KW - Diagnosis, Differential KW - Duodenal Ulcer KW - diagnosis KW - Epithelium KW - Esophageal Diseases KW - Esophageal Neoplasms KW - Esophagoscopy KW - Esophagus KW - abnormalities KW - Gastroesophageal Reflux KW - Hernia, Diaphragmatic KW - Humans KW - Mucous Membrane KW - Radiography KW - Stomach Ulcer KW - Ulcer N1 - Publication Type: Journal Article UR - https://doi.org/10.1017/s0022215100076738 ER -