ut co"><span class="r-pr">#&gt;</span> Number of obs: 144, groups:  Subject, 18</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Fixed Effects:</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> (Intercept)         Days  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>      245.10        11.44  </span>
</code></pre></div>
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