现场每人采血5ml(隔夜空腹)，经离心后分离血清，分装冰冻于-70℃直至测定，用于血清铁(Serum Iron，SI)检测以及与EHT有关的其它血液生化指标的检测。

• Our research discussed the relationship of serum iron (SI) and EHT based on a large number of EHT patients and the control in order to put forward pathogenic research evidence on EHT.