▁which ▁automatically ▁counts ▁the ▁events . ▁Sim ult aneous ▁event ▁gall eries ▁are ▁recorded ▁to ▁verify ▁whether ▁the ▁software ▁found ▁a ▁true ▁living ▁cell ▁and ▁to ▁differenti ate ▁between ▁skin ▁ep ith el ial ▁cells ▁for ▁example . ▁Close ▁validation ▁of ▁the ▁method ▁showed ▁that ▁additional ▁ant ib od ies ▁of ▁cy to ker at ins ▁or ▁CD 4 5 ▁did ▁not ▁have ▁any ▁advantage . ▁ ▁Un like ▁other ▁methods ▁main t rac ▁does ▁not ▁use ▁the ▁single ▁cell ▁count ▁as ▁a ▁pro gn ost ic ▁marker , ▁rather ▁M aint rac ▁util izes ▁the ▁dynamics ▁of ▁the ▁cell ▁count . ▁R ising ▁tum or ▁cell ▁numbers ▁are ▁an ▁important ▁factor ▁that ▁tum or ▁activity ▁is ▁on going . ▁Dec re asing ▁cell ▁counts ▁are ▁a ▁sign ▁for ▁a ▁successful ▁ther apy . ▁Therefore , ▁main t rac ▁can ▁be ▁used ▁to ▁verify ▁the ▁success ▁of ▁a ▁chem other apy ▁and ▁to ▁super v ise ▁the ▁treatment ▁during ▁h orm one ▁or ▁maintenance ▁ther apy ▁M aint rac ▁has ▁been ▁used ▁experiment ally ▁to ▁mon ito ▁cancer ▁rec urrence . ▁Studies ▁using ▁M aint rac ▁have ▁shown ▁that ▁Ep C AM ▁positive ▁cells ▁can ▁be ▁found ▁in ▁the ▁blood ▁in ▁patient ▁without ▁cancer . ▁In fl am mat ory ▁conditions ▁like ▁Cro hn ' s ▁disease ▁also ▁show ▁increased ▁levels ▁of ▁Ep C AM - pos itive ▁cells . ▁Pat ients ▁with ▁severe ▁skin ▁burn s ▁can ▁also ▁carry ▁Ep C AM ▁positive ▁cells ▁in ▁the ▁blood . ▁Therefore , ▁the ▁use