对流行病学本科教材中病因推断的部分方法的质疑

The Query about Part Methods of Inferring Disease Causes In Undergraduate CourseTeaching Material of Epidemiology

全国高等医药院校教材第五版《流行病学》 ,在讲述病因研究的推理方法时 ,介绍了求因果联系的 5种方法。

While explaining the reasoning methods of disease causes study, the national medical college teaching material Epidemiology in the fifth edition introduces five methods of seeking the relation of cause and effect.But I think that method of difference and joint method of agreement and difference in teaching material and the examples are incorrect.