8Nussbaum M,Baum S.Radiographic demonstration of unknown sites of gastrointestinal bleeding[J].Surgery,1963,14:347.
9Darryl Az,Thomas PB,Elisa HB.Massive hemorrhage in the lower gastrointestinal tract in adults:diagnostic imaging and intervention[J].AJR,1993,161:703.
10Guy GE,Shetty PC,Sharma RP,et al.Acute lower gastrointestinal hemorrhage:treatment by super-selective embolization with ployvinyl alcohol particles[J].AJR,1992,159:521.