Gastric biopsy under direct vision: evaluation of a new instrument and the value of the dissecting microscope.
D001706:Biopsy / Q000295:instrumentation*; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology*; D005767:Gastrointestinal Diseases / Q000175:diagnosis; D020699:Gastroscopes; D006801:Humans; D008297:Male; D008853:Microscopy; D008875:Middle Aged