BACKGROUND: Nutritional factors play an important role in skeletal development during growth.
背景：在生命生长过程中，营养因素在骨架发育上扮演着重要的角色。
Age, education background and income are major influential factors for utilization of community health services.
居民年龄、文化程度和经济收入是影响社区卫生服务利用的主要因素。
Age, education background and income are major influential factors for utilization of community health services.
居民年龄、文化程度和经济收入是影响社区卫生服务利用的主要因素。
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