"an ">&ensp;</span>and <span  title="" class="an ">&ensp;</span>may <span  title="" class="an ">&ensp;</span>represent <span  title="" class="an ">&ensp;</span>a <span  title="" class="an ">&ensp;</span>contributing <span  title="" class="an ">&ensp;</span>factor <span  title="" class="an ">&ensp;</span>for <span  title="" class="an ">&ensp;</span>photoreceptor <span  title="" class="an ">&ensp;</span>degeneration 
<p style="padding-top:30px;">Legend: <span class="Neuron">Neuron</span> <span class="NeuronWi