text: <unk> 's<unk>  must be differentiated from esophagitis, peptic ulcer disease, GERD, esophageal carcinoma and esophageal motor disorders.
option_0: Barrett's esophagus differential diagnosis
option_1: Pyloric stenosis differential diagnosis
option_2: Esophageal candidiasis differential diagnosis
option_3: Esophageal stricture differential diagnosis
option_4: Eosinophilic esophagitis differential diagnosis
option_5: Peptic ulcer differential diagnosis
option_6: Odynophagia differential diagnosis
option_7: Odynophagia other diagnostic studies