边防官兵功能性胃肠疾病的患病情况调查
Medical Journal of Chinese People's Liberation Army（2009）
Abstract
1 资料与方法
1.1 研究对象采取多级分层随机整群抽样的方法在驻疆边防官兵群体中整编制抽取15个连队,共1 062人,皆为男性,其中汉族601人,少数民族461人,平均年龄27(18～36)岁.
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