Associate director of Neurology department, Beijing Tiantan Hospital, Capital Medical University, Director of Neuromuscular and Hereditary department. Chief physician, postgraduate tutor, doctor of Medicine. Member of Neuromuscular Group of Neurological Branch of Chinese Medical Association. Standing Committee Member of Neuroscience Committee of Chinese Research Hospital Society. Member of the Beijing Medical Association Rare Disease Branch. Major research direction: cerebral small vessel disease neuromuscular disease, neurogenetic disease, neuropathic pain, rare diseases of the nervous system.