 U.S.
             regions in "long" format. It consists of a <code>data.frame</code>
             with the following columns:</p>
<ul>
<li><p><code>region</code>: the official HHS region name (e.g. "<code>Region 1</code>")</p></li>
<li><p><code>region_number</code>: the associated region number</p></li>
<li><p><code>regional_office</code>: the HHS regional office for the entire region</p></li>
<li><p><code>state_or_territory</code>: state or territory belonging to the region</p></li>
</ul>
    
    </div>
