1. Definitive operations for perforated duodenal ulcers;Smith;Surg. Gynecol. Obstet.,1969
2. Gastroduodenal perforation;Maynard;Arch. Surg.,1968
3. Vagotomy and pyloroplasty for perforated duodenal ulcers;Hinshaw;Amer. J. Surg.,1968
4. Vagotomy and drainage procedure for gastric ulcer;Stemmer;Arch. Surg.,1968
5. Recurrence of gastric ulcer after pyloroplasty;Woodward,1967