American Journal of Transplantation : Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons|May 23, 2009
National Vital Statistics Reports : From the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System|April 10, 2004
American Journal of Transplantation : Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons|May 23, 2009
National Vital Statistics Reports : From the Centers for Disease Control and Prevention, National Center for Health Statistics, National Vital Statistics System|April 10, 2004