definiens: means any LicensedApplication in the Peripheral Vascular Field of Use . Within sixty ( 60 ) days after the end of each Contract Quarter during theterm of the Cook License, Cook shall pay Angiotech the following royalty ( the ) on NetSales during that Contract Quarter of Eligible Peripheral Vascular Products, for sales by Cook and/or its Affiliates during suchContract Quarter, calculated as follows:(i ) with respect to sales in a country of the European Union Geographical Area of units of Eligible Peripheral VascularProducts that are Stent Products, the Cook Peripheral Vascular Royalty shall be [ * * * ] percent ( [ * * * ] % ) of the Net Sales ofsuch units of Eligible Peripheral Vascular Products;(ii ) with respect to sales in a country of the European Union Geographical Area of units of Eligible Peripheral VascularProducts, other than Stent Products, covered in the country of sale by one or more valid and enforceable claims of apatent included in the Patent Rights, the Cook Peripheral Vascular Royalty shall be [ * * * ] percent ( [ * * * ] % ) of the NetSales of such units of Eligible Peripheral Vascular Products ; Page 1 of 2th(iii ) with respect to sales in a country other than a country of the European Union Geographical Area of units of EligiblePeripheral Vascular Products covered in the country of sale by one or more valid and enforceable claims of a patentincluded in the Patent Rights, the Cook Peripheral Vascular Royalty shall be [ * * * ] percent ( [ * * * ] % ) of the Net Sales ofsuch units of Eligible Peripheral Vascular Products;(iv ) as a result of this Amendment, Cook need not calculate the Peripheral Vascular Base Unit Number as it no longerapplies to the calculation of the Cook Peripheral Vascular Royalty ; and(v ) with respect to sales of the ZILVER PTX product, the provisions of sections 4.2(a)(i - iv ) and 4.3(b ), as amended bythis Amendment, shall apply from the date of the first commercial sale of this product in any country in the world