The United States spends more than $2 trillion annually on health care. While overall life expectancy has improved, many patients fail to get the most appropriate treatment. Some get too much care. Others get too little. Despite having the most expensive health care system in the world, patients are subject to too many mistakes, too much miscommunication and too much inequity. Reducing such racial and regional disparities, detailed by researchers at Dartmouth Medical School, will be a major focus of a $300 million initiative to be announced.