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    Keywords COVID-19 H. pylori Helicobacter pylori colonoscopy colorectal cancer diagnosis dyspepsia endoscopy gastritis gastroesophageal reflux disease inflammatory bowel disease liver cirrhosis liver fibrosis management mortality pancreatic cancer portal hypertension prevalence risk factors treatment ulcerative colitis
    Open Journal Systems
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  2. Vol 20, No 2 (2019)
  3. Zein

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ISSN: 2302-8181

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