Antigen Express shall keep complete and accurate records pertaining to its use and disposition of Merck Compound (including its storage, shipping (cold chain) and chain of custody activities) and, upon request of Merck, shall make such records open to review by Merck for the purpose of conducting investigations for the determination of Merck Compound safety and/or efficacy and Antigen Express’ compliance with this Agreement with respect to the Merck Compound.