><a href="https://rdrr.io/r/base/options.html" class="external-link">options</a></span><span class="op">(</span>tibble.print_max <span class="op">=</span> <span class="fl">50</span><span class="op">)</span></span></code></pre></div>
</div>
<div class="section level2">
<h2 id="model-concept">Model concept<a class="anchor" aria-label="anchor" href="#model-concept"></a>
</h2>
<p>The model is represented below. All patients start in the
progression-free state and may move to the progressed state. At any
point i