in the study of a group of 178 unselected patients ( 105 men , 73 women , mean age 44.5 years ) , from a population at high risk for gastric carcinoma , who presented with chronic dyspepsia , a minimum of 8 gastric and oesophageal biopsy specimens were taken during upper gastro-intestinal endoscopy , and examined histologically and histochemically for the presence of campylobacter pylori and other pathological lesions .
C0699791
gastric carcinoma
C0038351
gastric