[Endoscopic diagnosis of the depressed type of early gastric cancer by the RC (red patch-white coating) method].
D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D005773:Gastroscopy; D008722:Methods; D013274:Stomach Neoplasms / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000150:complications