="dt">scales =</span> <span class="kw"><a href="https://www.rdocumentation.org/packages/base/topics/list">list</a></span>(<span class="dt">y =</span> <span class="kw"><a href="https://www.rdocumentation.org/packages/base/topics/list">list</a></span>(<span class="dt">relation =</span> <span class="st">"free"</span>)),</a>
<a class="sourceLine" id="cb6-4" title="4">       <span class="dt">xlab =</span> <span class="st">"Follow-up time (months)"</span>, <span class="dt">ylab =</span> <span class="st">"Scoring 