Go to the Yahoo! Finance website (finance.yahoo.com), and look up the operating margin and return on


Go to the Yahoo! Finance website (finance.yahoo.com), and seem up the bountiful latitude and recur on equity for Community Health Systems (type CYH). How does it assimilate to Pfizer (PFE), Amgen (AMGN), Laboratory Corporation of America (LH), and Tenet Healthcare Corporation (THC)?