Editor’s Note: In the third part of a five-part series, thirdAGE contributor Nancy Wurtzel (at right in the above photo) shares the ordeal her sister Barbara (at left in the above photo) is undergoing as she waits for a match for a lung transplant. Barbara’s situation is complicated by the fact that her husband, Jim,… Continue reading My Sister’s Lungs, Part 3: A Primer on Lung Transplants