Parkinson's disease (PD), a progressively degenerative disease of the nervous system, results from loss of dopamine in the brain and occurs mainly in people over the age of fifty.
Parkinson's disease (PD), a progressively degenerative disease of the nervous system, results from loss of dopamine in the brain and occurs mainly in people over the age of fifty.
帕金森氏症（震颤性麻痹）（简称PD），是一种神经系统会日益恶化的疾病，导致大脑中多巴胺的缺乏，这种疾病的患者大多年龄在50岁以上。