一、食用及观察方法: (一)分组情况:食用本品对象均为2～8个月的无母乳婴儿,分为2月～、4月～和6～8个月三个观察组。以习惯喂养者(母乳或牛奶喂养)的相应月龄也分为三个对照组。观察组和对照组均未加选择。 (二)观察方法: 1.全面体检及详细表格登记(包括出生史、喂养及生长发育史等),凡患有特殊疾病者 First, the edible and observation methods: (a) grouping: eating this product are 2 to 8 months of non-breast-fed infants, divided into February ~ April ~ and 6 ~ 8 months three observation group. The corresponding months of age for customary feeding (breast milk or milk feeding) were also divided into three control groups. There was no choice between the observation group and the control group. (B) of the observation methods: 1. Comprehensive physical examination and registration of a detailed form (including birth history, feeding and growth and development history, etc.), who suffer from special diseases