Professor Jiaxiang Ni, Chief Physician, Doctoral Supervisor, Director of Pain Diagnosis and Treatment Center, Xuanwu Hospital, Capital Medical University, Deputy Director of Anesthesiology Department, Deputy Director of Institute of Pain Biomedicine, Capital Medical University, Standing Committee Member of Chinese Academy of Pain Medicine, Editorial Board Member of the Chinese Journal of Anesthesia and Analgesia, Editorial Board Member of the Journal of Difficult Diseases, Executive Board Member of Chinese Journal of Pain Medicine, President of World Association of Pain Physicians (2010.6-2012.6), President of the China Branch of the World Association of Pain Physicians, his research direction is the diagnosis and interventional treatment of refractory neuralgia.