| Disease | squamous cell carcinoma of esophagus | 
| Comorbidity | C0017154|gastric atrophy | 
| Sentences | 1 | 
| PubMedID- 21811162 | Helicobacter pylori infection and fundic gastric atrophy are not associated with esophageal squamous cell carcinoma: a case-control study. | 
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