Exhibit 10.5(b) SCHEDULE 6.2.6 AVERAGE NET SELLING PRICE Identified Targeted Quantity Volume Selling Sold In Level Price/Test A Month - ----- ---------- ------- [*] $[*]/ [*] [*] [*] $[*]/ [*] [*] [*] $[*]/ [*] [*] ----- -------- [*] [*] [*] divided by [*] = [*] Weighted average selling price is [*] per test. If Tokos' actual collection experience is [*], the Average Net Selling Price is: [*] ====== [*] Confidential Treatment Requested