Gastroscopy and gastric cancer.
D003581:Cytodiagnosis; D003937:Diagnosis, Differential; D005260:Female; D005750:Gastric Juice / Q000378:metabolism; D005756:Gastritis / Q000150:complications / Q000175:diagnosis; D005773:Gastroscopy; D006801:Humans; D008223:Lymphoma / Q000000981:diagnostic imaging; D008297:Male; D011127:Polyps / Q000000981:diagnostic imaging; D011859:Radiography; D013274:Stomach Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000378:metabolism; D013997:Time Factors