Cytological screening for cancer of the stomach.
D000126:Achlorhydria / Q000150:complications; D003581:Cytodiagnosis; D005336:Fiber Optic Technology; D005753:Gastric Mucosa; D005756:Gastritis / Q000150:complications; D005773:Gastroscopy; D006801:Humans; D008403:Mass Screening; D008679:Metaplasia / Q000150:complications; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology