Objective : To study the changes on contents of dopamine D2 receptor after morphine abstinent, and effects of extremely low-frequency electromagnectic field (ELFEF) on dopamine D2 receptor . Methods : 42 male SD rats were used.

• 目的：探讨吗啡戒断时多巴胺D2受体含量的变化情况及极低频电磁场对多巴胺D2受体的影响。