Endoscopic determination of the extent of early ulcerated gastric cancer by the Congo red test.
D003224:Congo Red; D005744:Gastric Acid / Q000378:metabolism; D005773:Gastroscopy / Q000379:methods; D006801:Humans; D013274:Stomach Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D013276:Stomach Ulcer / Q000150:complications
D003224:Congo Red