my fellows and residents. They have missed their teacher quite a bit during the "hot" periods of this project, and they paid me back, not by compla- ing, but by asking pertinent questions and by providing me with interesting cases. I would like to thank Peter Jaksch and Walter Klepetko from the Lung Transplantation Unit of my home University of Vienna, Austria. Their clinical and surgical competence, combined with their reliability, have made our daily collaboration a productive and enjoyable partnership. I owe my deep gratitude to Pierre Alain Gevenois, Department of Radiology, and Marc...