1. The Edwin Smith Papyrus;Breasted,1930
2. Prognostic signs and nonoperative peritoneal lavage in acute pancreatitis;Ranson;Surg Gynecol Obstet,1976
3. Transection of the oesophagus for bleeding oesophageal varices;Pugh;Br J Surg,1973
4. A method of uniform stratification of risk for evaluating the results of surgery in acquired adult heart disease;Parsonnet;Circulation,1989
5. Predicting outcome in individual patients after severe head injury;Jennett;Lancet,1976