Swiss drugmaker Roche Holding (ROG.VX) expects sales from its diagnostic division to grow faster in the United States than the market trend and it will not reduce prices despite reimbursement cuts in the U.S. health programme, an executive said. In April, the U.S. released final reimbursement rates for 2015 Medicare Advantage plans, which insurers and Wall Street analysts say represents a cut of about 3 percent.