Ratios less than 1 sometimes arise when the children of the urban poor (e.g., slum dwellers) suffer high mortality rates compared with the rural population (22, 23).
当城市贫困家庭（如贫民窟）的儿童死亡率较高时，农村/城市的儿童死亡率会小于1。
MAD works with urban children in orphanages, shelters and poor homes who don't get quality educations.
MAD为那些在孤儿院、避难所和贫穷家庭而得不到高质量教育的孩子提供服务。
Similar to the malnutrition in urban children, this type of anemia is not caused by the absence of relevant food, but rather by poor eating habits and a lack of nutrition knowledge.
与大城市孩子营养不良问题有相似之处，这种贫血不是没有相应食物造成的，而与饮食习惯和营养知识缺乏有关。
In this research, children in the right age of special need group refers to children in poor family and rural-urban migrants, together with girls in impoverished area and disabled children.
文 献 综 述 摘要 执笔人：杜文平、卫宏在本研究中特殊群体适龄儿童是指贫困家庭、流动人口中的适龄儿童、女童、残疾儿童。
In this research, children in the right age of special need group refers to children in poor family and rural-urban migrants, together with girls in impoverished area and disabled children.
文 献 综 述 摘要 执笔人：杜文平、卫宏在本研究中特殊群体适龄儿童是指贫困家庭、流动人口中的适龄儿童、女童、残疾儿童。
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