David Marx was quoted in the January 7 issue of Modern Healthcare in an article regarding Mercy Medical Center's claim that the Aultman Health Foundation has sought to eliminate competition and to attain monopoly power over hospital care in Stark County, Ohio. Mr. Marx, an antitrust lawyer, commented on vertical integration and its effect on competition in the hospital care market. "Particularly in concentrated markets with relatively few players, it is somewhat of a minefield to compete in all segments of the market, both delivery and insurance," he said. "The critical issue will be whether (Mercy) is being foreclosed from so much of the potential marketplace that it will be (unable to compete). That's a pretty high burden to meet," Mr. Marx added.