METHODS:The serum copper level(SCL),serum zinc level(SZL)and CZR were determined by atomic absorption spectrophotometry(AAS)in 135 patients with HD and 100 healthy individuals.

• 方法：采用原子吸收分光光度计对135例HD患者血清铜水平(SCL)，锌水平(SZL)及铜/锌比值(CZR)进行测定。