definiens: shall mean, with respect to any month or Quarterly Period, the gross amount invoiced by Xxxxxx or its Affiliates for OraQuick ® ADVANCE ™ Devices sold by Xxxxxx or its Affiliates to unaffiliated third parties ( a distributor, sub - dist ributor or agent of Xxxxxx or any of its Affiliates who is not an Affiliate of Xxxxxx or any of its Affiliates, shall be considered such an unaffiliated third party ) du ring such month or Quarterly Period, less ( i ) trade, cash and quantity discounts and rebates allowed and taken b y the unaffiliated third party, ( ii ) amounts repaid, cred ited or allowed and taken by the unaffiliated third party on account of returned or rejected OraQuick ® ADVANCE ™ Devices, recalls, billing errors, or retroactive p rice reductions or price reductions imposed by governmen tal authorities, ( iii ) tariffs, duties, excises and taxes included in the amount charged to the unaffiliated third party, and ( iv ) freight, insurance and other transportation and shipping costs included in the amount charged t o the unaffiliated third party . In the event an Ora Quick ® ADVANCE ™ Device is sold with any other products or services of Xxxxxx, Xxxxxx shall separately itemize and individually price such OraQuick ® ADVANCE ™ Device on the invoice to the customer and such ite mized price shall be used to calculate Xxxxxx Net Sales that in cludes the sale of such OraQuick ® ADVANCE ™ Device . In no event shall the same OraQuick ® ADVANCE ™ Device be included in Xxxxxx’x Net Sales more than once