The epidemic cross sectional study

• 流行病学调查

The epidemic cross sectional study的用法和样例：

例句

1. Methods The investigation of the epidemic area,the isolation of Orientia tsutsugamushi,the study of pervention measures were carried out.
   方法疫源地流行病学调查，病原分离鉴定与分子生物学研究，预防措施的制定。