11.   A repeated endoscopy and biopsy specimens of the gastric lesions showed no change.

12.   The endoscopic aspect of the gastric lesions was clearly suggestive of malignancy in only half the patients.

13.   This study aimed to determine the prevalence of dyspeptic symptoms and premalignant gastric lesions in coal miners and sex matched population control subjects.

a. + lesion >>共 165
gastric 4.05%
precancerous 3.74%
small 3.43%
suspicious 2.80%
gastrointestinal 2.49%
cancerous 2.18%
upper 2.18%
cervical 1.87%
mucosal 1.87%
similar 1.87%
gastric + n. >>共 138
mucosa 11.64%
secretion 10.23%
metaplasia 7.80%
cancer 6.27%
cell 3.07%
lymphoma 2.69%
surgery 2.30%
acid 2.17%
body 2.17%
biopsy 2.17%
lesion 1.66%
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