<span class="citations"><p>Jinliang LI, Feng LV, "PROCESS FOR STEREOSELECTIVE SYNTHESIS OF LAMIVUDINE." U.S. Patent US20100249409, issued September 30, 2010.</p>
</span><a href="https://www.google.com/?tbm=pts#q=20100249409&amp;tbm=pts" rel="noopener" target="_blank">US20100249409</a>