Leiden shall invoice Sponsor for each […***…] payment, such invoices to be delivered to Sponsor (a) for the first such […***…], within […***…] after the Effective Date, and (b) thereafter within […***…] after the end of each […***…]. So long as Leiden complies with the material terms and conditions of this Agreement, Sponsor shall pay Leiden, within […***…] of receipt of invoice, as follows: […***…] of the Total Cost (i.e., EUR212,284.58) per […***…].