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随着人民生活水平的提高和医学模式的转变,对保健服务的需求和利用日益扩大。儿童保健医疗服务的内容也得以不断拓展,新知识、新技术、新的服务理念不断引入[1]。微量元素关系着儿童健康,其缺乏影响婴幼儿的生长发育,可使食欲、记忆力、注意力、智力及免疫力下降,越来越多的研究表明微量元素的缺乏与临床感染性疾病密切相关。一系列大型前瞻性随机双盲对照锌补充研究发现,在不发达国家中轻中度锌缺乏的
With the improvement of people’s living standard and the change of medical model, the demand and utilization of health care services are expanding day by day. The content of child health care services has also been continuously expanded, and new knowledge, new technologies and new service concepts are continuously introduced [1]. Trace elements related to children’s health, lack of influence on the growth and development of infants and young children, can make appetite, memory, attention, intelligence and immunity decreased, more and more studies have shown that the lack of trace elements and clinical infectious diseases are closely related. A series of large, prospective, randomized, double-blind, controlled zinc supplementation studies found that mild to moderate zinc deficiency in underdeveloped countries