title: Gastroscopy and cytology in the diagnosis of gastric malignant diseases.
mesh_terms: D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000175:diagnosis; D003581:Cytodiagnosis; D003937:Diagnosis, Differential; D005260:Female; D005751:Gastric Lavage; D005773:Gastroscopy; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D013272:Stomach Diseases / Q000175:diagnosis; D013274:Stomach Neoplasms / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000175:diagnosis; D013997:Time Factors