<li>Tobias Gerhard, Brian L. Strom, Nir Eyal. <strong>Pandemic vaccine testing: Combining conventional and challenge studies</strong>. <em>Pharmacoepidemiology and Drug Safety</em>, 2022; DOI: <a href="http://dx.doi.org/10.1002/pds.5429" rel="nofollow" target="_blank">10.1002/pds.5429</a>
</li>