Can I call you back? http://www.afsbt.org/index.php/aralen-cost chloroquine aralen  Goldman says that the nomination of a new chair for the Federal Reserve could lead to stock-market volatility,particularly if it comes after the central bank has already started to withdraw its aggressive stimulus efforts. Thebank also expects the Fed will pare its monthly bond-buying by $10 billion later this month, and will concentrate thecuts in the Treasury markets rather than mortgage-backed securities.