text: The videofluorographic swallowing study is the gold standard for evaluating the patients presenting with<unk> . VFSS provides information about delay in initiation of pharyngeal swallowing, nasopharyngeal regurgitation, residue of ingestate within the pharyngeal cavity after swallowing, and aspiration of ingestate.
option_0: Dysphagia diagnostic study of choice
option_1: Hypopharyngeal cancer diagnostic study of choice
option_2: Dysphagia differential diagnosis
option_3: Pyloric stenosis diagnostic study of choice
option_4: Barrett's esophagus differential diagnosis
option_5: Odynophagia differential diagnosis
option_6: Pyloric stenosis differential diagnosis
option_7: Odynophagia other diagnostic studies