Sep. 12, 2007 (Investor’s Business Daily delivered by Newstex) --Several medical industry groups have climbed into leadership roles since the market rebounded from its summer low four weeks ago.Health care-related exchange traded funds have seen a major growth spurt in 2007, in which the number of options about doubled to 41. The summer sell-off left pharmaceuticals and some specialized areas like cancer treatment struggling to rebound from their lows.
