1. Complications of gastrointestinal intubation;Hafner;Arch Surg,1961
2. Nasogastric suction;Perry,1966
3. Complications of gastro-intestinal intubation;Chaffee;Ann Surg,1949
4. Complications of intestinal intubation with report of two cases of unusual complication;Lichtenstein;Calif Med,1952
5. Nasogastric intubation; indications, complications, safeguards and alternative procedures;Strohl;Amer Surg,1958