(AGI) Rome, Sept 22 - The European stock markets closed lowerin the wake of the Asian markets, which feared a slowdown ofChina's economic growth. Milan posted the worst performance,sliding 1.43 percent to 20,673 points, followed by London whichfell 0.94 percent to 6,773.63 points with Tesco shares droppingsharply after reporting an accounting error. Frankfurt slid0.51 percent to 9,749.59 points, Paris fell 0.42 percent to4,442.55 points and Madrid lost 0.49 percent. Wall Street'sNasdaq was down 1.2 percent. . .