Common use of Biological Material Clause in Contracts

Biological Material. Upon termination of this Agreement, whether by Lilly or Versicor, Versicor shall cease all use of any Biological Materials and shall, upon request, return or destroy (at Lilly's option) all Biological Materials under its control or in its possession within sixty (60) days and provide a written warranty by an Officer of Versicor that the Biological Materials have been returned or destroyed.