1. Competitive operations for duodenal ulcer;Herrington;Surg. Gynec. & Obst.,1966
2. Abdominal surgery;Welch;New England J. Med.,1966
3. Factors influencing mortality following emergency operations for massive upper gastrointestinal hemorrhage;Foster;Surg. Gynec. & Obst.,1963
4. Operative risk for patients with duodenal ulcer;Priestly,1965
5. Pyloroplasty and vagotomy for duodenal ulcer;Small;New England J. Med.,1965