Loop de Página (Section) / Loop Page

loop-page.php

<!-- Loop com ID -->
<?php $my_query = new WP_Query('page_id=87');
while ($my_query->have_posts()) : $my_query->the_post();
$do_not_duplicate = $post->ID;?>

  <div class="entry">

      <?php the_content(); ?>

  </div>

<?php endwhile; ?>
<!-- / Loop com ID -->

<!-- Loop com Slug -->
<?php $my_query = new WP_Query('pagename=slug');
while ($my_query->have_posts()) : $my_query->the_post();
$do_not_duplicate = $post->ID;?>

<div class="entry">

    <?php the_content(); ?>

</div>

<?php endwhile; ?>
<!-- / Loop com Slug -->