REFERENCES
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- Stokes , M. , Davis , C. and Koch , G. 1995 . Categorical Data Analysis Using the SAS System Cary , NC : SAS Institute. .
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- Ziegel , E. 1997 . Editor's Report on Survival Analysis Using the SAS System: A Practical Guide . Technometrics , 39 : 344 – 345 . P. Allison
- Ziegel , E. 1998 . Editor's Report on Extending SAS® Survival Analysis Techniques for Medical Research . Technometrics , 40 : 164 A. Cantor