definiens: ( as defined un der the Social Security Act, 42 U.S.C. Sections 139 6r-8(k)(l ) ) and units for each Product identified by N DC and ( C ) the ( as defined under the -55- Social Security Act, 42 U.S.C. Sections 1396r-8(c ) ( 1)(C ) ) for each Product identified by NDC, ( ii ) wit hin twenty - five ( 25 ) days after the end of each calenda r month, the ( as defin ed under the Social Security Act, 42 U.S.C. Sections 1396r-8 ( k)(l ) ) and units for each Product identified by ND C and ( iii ) any other information reasonably requested by the S ellers to allow the Sellers to comply with such req uirements, and, in each case, a certification to the best of t he Purchaser ’s knowledge of the accuracy and comple teness thereof ( subject to any updates of the information included in such certification ) in all material res pects, within ten ( 10 ) days after BH publicly announces its quart erly financial results ; provided, that the Purchaser ’s obligations pursuant to this Section 5.18(b ) shall expire thirty ( 30 ) days after the end of the calend ar quarter in which the Purchaser suspends its usage of the Selle rs ’ NDC numbers in connection with the Business