调查方法一、对象托儿所儿童216名,男118名,女98名。2～4岁79名,～6岁91名,～7岁46名。二、项目 (一)调查有关贫血病因史、既往史,并作系统体检。 (二)分别调查3个托儿所6天的膳食情况(称量法),计算出每个儿童每日各种营养成分的 Survey methods First, the target child care nursery school 216, 118 men and 98 women. 2 to 4 years old 79, ~ 6 years old 91, ~ 7 years old 46. Second, the project (a) to investigate the history of anemia, past history, and for physical examination. (B) to investigate the three nurseries for 6 days of the diet (weighing method), calculated for each child each day a variety of nutrients