<span class="citations"><p>Srinivasa Rao V.N Divvela, Lenin Racha, Sivakumaran Meenakshisunderam, Ramesh Dandala, "Process for the preparation of risedronate sodium hemi-pentahydrate." U.S. Patent US20070173484, issued July 26, 2007.</p>
</span><a href="https://www.google.com/?tbm=pts#q=20070173484&amp;tbm=pts" rel="noopener" target="_blank">US20070173484</a>