>&ensp;</span>and <span  title="" class="an ">&ensp;</span>ganglion <span  title="" class="an ">&ensp;</span><span  title="Neuron" class="an Neuron">cells</span><span  title="" class="an ">&ensp;</span>but <span  title="" class="an ">&ensp;</span>was <span  title="" class="an ">&ensp;</span>absent <span  title="" class="an ">&ensp;</span>from <span  title="" class="an ">&ensp;</span>both <span  title="" class="an ">&ensp;</span>plexiform <span  title="" class="an ">&ensp;</span>layers <span  title="" class=