[Ultrasonic diagnosis of gastrointestinal diseases].
D000208:Acute Disease; D001064:Appendicitis / Q000175:diagnosis; D003110:Colonic Neoplasms / Q000175:diagnosis; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D007415:Intestinal Obstruction / Q000175:diagnosis; D008207:Lymphatic Metastasis; D010437:Peptic Ulcer / Q000175:diagnosis; D013274:Stomach Neoplasms / Q000175:diagnosis; D014463:Ultrasonography