<正>Associate Professor,Chief Physician in Dept.of Neurosurgery,Beijing Xuanwu Hospital 2002-2005 PhD,Capital Medical University,Beijing,China 1994-2001 MD,Bethune Medical University,Changchun,Jilin Province,China PROFESSIONAL AFFILIATION Member,Spine and Spinal Cord Group in Neurosurgery Chapter of Chinese Medical Doctor Association Member,Spine and Spinal Cord Group in Neurosurgery Chapter of Chinese Medical Association Secretary General,China Neuro Spine Association