Atlanta's Grady Memorial Hospital is getting its first cash infusion of $50 million as a new nonprofit board takes over responsibility for operations of the public hospital. The first installment will come from the Robert W. Woodruff Foundation, which has pledged $200 million to Grady over four years. Grady is struggling financially, and has reached a crisis point because of rising costs, dwindling aid, a lack of paying customers, and neglect.