wo groups of 6 intrauterine growth retardation(IUGR)placentae each from normal ponderal in-dex(NPI)or low ponderal index(LPI) and 10 placentae from normal pregnancy as control were quanti-tatively analyzed with light and electron microscopic morphometry.

• 对12例胎儿生长迟缓（IUGR组）及10例正常胎儿（对照组）的胎盘组织进行光镜水平和电镜水平的定量观测。