The significance of rectal bleeding.
D004067:Digestive System Neoplasms; D006471:Gastrointestinal Hemorrhage; D041981:Gastrointestinal Tract; D006470:Hemorrhage; D006801:Humans; D009369:Neoplasms; D012007:Rectum
GASTROINTESTINAL SYSTEM/neoplasms; HEMORRHAGE; RECTUM/hemorrhage