Kidney transplant recipient Solomon Weldeghebriel, second from left, with kidney donor Bill Singleton, right, holds his children Mahor, 5, left, and daughter Simona Weldeghebriel, 3, during a news conference at Georgetown University Hospital in Washington, Tuesday, Dec. 15, 2009. Weldeghebriel and Singleton are part of a record-setting marathon 13-way kidney swap, a pioneering effort to expand transplants to patients who too often never qualify.
(AP Photo/Manuel Balce Ceneta)