s="st">'M'</span> <span class="op">&amp;</span> </span>
<span>                                             <span class="va">adm_dat</span><span class="op">$</span><span class="va">Enroll</span> <span class="op">==</span> <span class="fl">1</span> <span class="op">&amp;</span> </span>
<span>                                             <span class="va">adm_dat</span><span class="op">$</span><span class="va">FtPt</span> <span class="op">==</span> <span class="st">'PT'</span>, <span class="op">]</span><span cla