Methods The data of resident's contacting infectious water were collected with cohort study, and were analyzed by samplecluster analysis (Q type).
方法采用队列随访调查的方法收集居民疫水暴露的情况,并用系统聚类法中样品聚类(Q型)进行聚类分析。
3
The ordinal samplecluster method was used to study the distribution of blood pressure measurements by age for 2485 Mongolian children aged 4 to 14 in Zhemeng district.