
the pathology of the living," have shown that dyspepsia is dependent 011 an organic basis much more frequently than was formerly believed. Yet the functional group of disorders remains a large one, difficult to classify and unsatisfactory to treat.
The main methods by which gastric cases are investigated may be summarized under four headings?(1) history, (2) physical examination, (3) chemical analysis, (4 

{'paper_id': '53426061', 'title': 'The Radiological Factor in the Diagnosis of Gastric and Duodenal Disease', 's2_url': 'https://api.semanticscholar.org/CorpusID:53426061', 'source': 'S2ORC'}