学龄前期佝偻病危险因素病例对照研究何新荣１陈忠良２黄旦军１彭格美１佝偻病是我国重点防治的小儿“四病”之一。既往对婴幼儿期佝偻病的防治已进行了广泛的研究［１］，近年来北方部分地区对晚发性佝偻病也做了有关调查［２］，但对学龄前期佝偻病（ｐｒｅｓｃｈｏｏｌ... Case-control study on the risk factors of pre-school rickets He Xinrong 1 Chen Zhongliang 2 Huang Danjun 1 Peng Gemei 1 Rickettsia is one of the “four diseases” in our country. In the past, prevention and treatment of infants and young children’s rickets have been extensively studied [1]. In recent years, some areas in the northern part of the country have also made some investigations about late rickets [2]. However, preschool ...