Recently, the Centers for Medicare and Medicaid Services ( CMS ) sanctioned CVS's SilverScript Medicare Part D prescription drug plan for issues related to claims processing. ((CVS Caremark: CMS Sanctions SilverScript Plan for Claims Processing Issues, Wall Street Journal, January 2013)) With generics dragging down retail pharmacy revenues, we expect pharmacy services to become the primary business of the company over the coming quarters. Revenue per mail choice claim increased by 23% compared to the prior year period primarily due to drug cost inflation in the specialty business.