The Multistage Weibull (MSW) time-to-tumor model and related documentation were developed principally (but not exclusively) for conducting time-to-tumor analyses to support risk assessments under the IRIS Program. These programs and related documentation are made available publicly to insure that the methods and calculations used for such analyses are transparent and reproducible.

• MSW time-to-tumor model executable, user manual, spreadsheet data template, and sample data and output files
• MSW time-to-tumor model peer review comments and response (also includes review of other models)
• MSW time-to-tumor model technical documentation

• Benchmark Dose Software (BMDS) Training Webinars: Cancer Models
• Model Executable Versions table
• 2007 External Review of the Multistage Weibull Time-to-Tumor Model
• Technical guidance for choosing the appropriate stage of a Multistage model for cancer modeling

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