A notable number of adolescents are involved in bullying and different bullying roles have been described in previous re......

Unlike randomized trial,statistical strategies for inferring the unbiased causal relationship are required in the observ......

In China,mathematics has always been a very important subject for students at school and adults in the workforce.With th......

目的对中青年腹膜透析患者症状特征进行分类，探讨不同症状类别患者在人口学特征及疾病特征上的差异。方法2019年12月至2020年8月采......