definiens: shall mean, for any period, the gross amount invoiced by Licensee and its Affiliates for the sale of Licensed Product by Licensee or any of its Affiliates to Third Parties, less deductions for chargebacks, billing errors, rejected goods, damaged goods and returns . Any of the deductions listed above that involves a payment by Licensee or its Affiliates shall be taken as a deduction in the calendar quarter in which the payment is accrued by such entity . For purposes of determining Net Sales, a Licensed Product shall be deemed to be sold Page 4 when invoiced and a shall not include transfers, uses or dispositions for promotional, pre­clinical, clinical, regulatory or governmental purposes . For purposes of calculating Net Sales, sales between or among Licensee or its Affiliates shall be excluded from the computation of Net Sales, but sales by Licensee or its Affiliates to Third Parties shall be included in the computation of Net Sales