Evaluation of biopsy and cytology in the diagnosis of gastric cancer.
D001706:Biopsy; D003581:Cytodiagnosis; D003951:Diagnostic Errors; D004945:Esophagoscopy; D005188:False Negative Reactions; D005751:Gastric Lavage; D005773:Gastroscopy; D006801:Humans; D012509:Sarcoma / Q000175:diagnosis / Q000473:pathology; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology