维基共享资源上的相关多媒体资源:死亡證 Mortality Data (页面存档备份,存于互联网档案馆) from the U.S. NationalVitalStatisticsSystem - See Methods - Data collection - for copies of death certificates
P; Giambo, P, Design and operation of the National Survey of Children’s Health (PDF), Vital Health Statistics, 2005, 1 (43) [2013-01-11], (原始内容 (PDF)存档于2021-03-18)