<?php
$stati_children = new WP_Query(array(
'post_type' => 'page',
'post_parent' => 72
)
);
?>
<?php if($stati_children->have_posts()) :
....
'post_parent__in' => array( 2, 5, 12, 14, 20 )
'post_type' => 'page', 'post__in' => array( 2, 5, 12, 14, 20 )