title: New device of diagnosis of gastric submucosal tumor: endoscopic direct biopsy using thorny needle.
mesh_terms: D000328:Adult; D000368:Aged; D001707:Biopsy, Needle / Q000295:instrumentation* / Q000379:methods; D005260:Female; D005336:Fiber Optic Technology; D005773:Gastroscopy; D006801:Humans; D007889:Leiomyoma / Q000473:pathology; D007890:Leiomyosarcoma / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009339:Needles; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology