rneau, and Patricia M. Grambsch. 2000. <em>Modeling Survival
Data: Extending the <span>C</span>ox Model</em>. New York: Springer.
</div>
<div id="ref-survival-package" class="csl-entry">
Therneau, Terry M. 2022. <em>A Package for Survival Analysis in r</em>.
<a href="https://CRAN.R-project.org/package=survival" class="external-link">https://CRAN.R-project.org/package=survival</a>.
</div>
</div>
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