TY - GEN AU - Lambert,R TI - Upper gastrointestinal tumors SN - 0013-726X PY - 2006///0622 KW - Barrett Esophagus KW - pathology KW - Carcinoma, Squamous Cell KW - Diagnosis, Differential KW - Endoscopy, Gastrointestinal KW - Esophageal Neoplasms KW - Gastroesophageal Reflux KW - Humans KW - Precancerous Conditions KW - Risk Factors N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1055/s-2005-921208 ER -