> <span class="ow">in</span>
                                 <span class="nb">zip</span><span class="p">(</span><span class="n">time</span> <span class="o">-</span> <span class="n">recruit_time</span><span class="p">[</span><span class="n">registered_patients</span><span class="p">],</span> <span class="n">event_time</span><span class="p">[</span><span class="n">registered_patients</span><span class="p">])</span>
                                      <span class="p">])</span>
        <span class="c"># Upda