1. ACC/AHA task force report: guidelines for coronary artery bypass graft surgery;Kirklin;J Am Coll Cardiol,1991
2. A method of uniform stratification of risk for evaluating the results of surgery in acquired adult heart disease;Parsonnet;Circulation,1989
3. Quantitative quality descriptors for an open-heart program;Williams;Qual Progr,1992
4. Statgraphics, STS, Inc. Version 3.0, 1985.
5. How to do it: utilizing risk stratification to evaluate outcomes in adult open-heart operations;Dickinson;J Extracorp Technol,1993