e <span  title="" class="an ">&ensp;</span>we <span  title="" class="an ">&ensp;</span>report <span  title="" class="an ">&ensp;</span>that <span  title="" class="an ">&ensp;</span><span  title="CAP" class="an CAP">HCN</span><span  title="" class="an ">&ensp;</span>and <span  title="" class="an ">&ensp;</span><span  title="CAP" class="an CAP">HCN</span><span  title="" class="an ">&ensp;</span>isoforms <span  title="" class="an ">&ensp;</span>coexpressed <span  title="" class="an ">&ensp;</span>in <span  tit