definiens: shall mean ~ he amount billed by Ciba to : hird parties in the Territory for the sale of the Produces, less allowances for all discounes ( including, but not limited to, cash discounts, pharmacy : ~ceneive programs and costs of other, similar i ~ centive programs ), rebaees ( including, bu~ ~ot limited to, all governmeneal and managed healthcare rebates and hospital performance incentive program chargebacks ), credits, returns ( including, but not limited to, wholesaler and retailer returns ), other similar a ~ d customary deductions, and sales, use and other taxes similarly incurred, all to tl':l.e e?,C.t,~:nt ac;:ctlally allowed ) 6 CONfIDENTiAL TRflUMENT REQUESTED l:.cc=~ed c= ~~ken . ~nd as cecerm ~ ned i~ accordance > ' ? = ~~ary Cetail : all~ shall mean chaco iuri::g a 5ales call . ~::e ? rcducc shall = e che firsc item ~=esenced and shall comprise, cn the average, [ 50~;Of ~::e ~~cerview cime