摘要:The multistage model is tested on several human and animal data sets. It fits in some cases but not in others. With human lung cancer data, there is a drop in risk for ex-smokers quite different from the predictions of the model. The results are not conclusive but are compatible with the view that the multistage model provides a family of curves that often fit cancer incidence data, but may not capture the underlying biological reality. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (3.7M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188