 <span class="op">|&gt;</span></span>
<span>    <span class="fu"><a href="https://dplyr.tidyverse.org/reference/select.html" class="external-link">select</a></span><span class="op">(</span><span class="va">USUBJID</span>, <span class="va">STRATA</span>, <span class="va">REGION</span>, <span class="va">REGIONC</span>, <span class="va">TRT</span>, <span class="va">BASE</span>, <span class="va">CHG</span>, <span class="va">AVISIT</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># Fit