About 75% of people presenting to the emergency department with<unk><unk>  have an upper source . The diagnosis is easier when the people have hematemesis. In the absence of hematemesis, 40% to 50% of people in the emergency department with<unk><unk>  have an upper source.
types of Gastrointestinal bleeding
symptom of Abscess
symptom of Gastrointestinal bleeding
types of Head injury
symptom of Hemorrhoid
symptom of Pancreatitis
causes of Hematochezia
medical cause of Infection