To study the effect of anti-thyroid drug(ATD)on heart rate variation (HRV)in patients with Graves disease (GD).

• 目的:探讨抗甲状腺药物(ATD)对毒性弥漫性甲状腺肿即Graves病(GD)患者治疗前后心率变异性(HRV)的影响。