Gastric cancer. Direct vision biopsy and abrasive cytology.
D000230:Adenocarcinoma / Q000175:diagnosis; D001466:Barium Sulfate; D001706:Biopsy; D003937:Diagnosis, Differential; D005188:False Negative Reactions; D005336:Fiber Optic Technology; D005753:Gastric Mucosa / Q000473:pathology; D005773:Gastroscopy; D006801:Humans; D008403:Mass Screening; D008722:Methods; D011859:Radiography; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000517:prevention & control
D001466:Barium Sulfate