机构:
Univ Ulm, Inst Human Genet, Albert Einstein Allee 11, D-89081 Ulm, GermanyUniv Ulm, Inst Human Genet, Albert Einstein Allee 11, D-89081 Ulm, Germany
Kehrer-Sawatzki, Hildegard
;
Cooper, David N.
论文数: 0引用数: 0
h-index: 0
机构:
Cardiff Univ, Inst Med Genet, Heath Pk, Cardiff CF14 4XN, S Glam, WalesUniv Ulm, Inst Human Genet, Albert Einstein Allee 11, D-89081 Ulm, Germany
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
Lin, Tao
;
Shao, Wei
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
Shao, Wei
;
Zhang, Ke
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
Zhang, Ke
;
Gao, Rui
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
Gao, Rui
;
Zhou, Xuhui
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
机构:
Shanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R ChinaShanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R China
Ma, Junming
;
Wu, Zhipeng
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, ChangZheng Hosp, Dept Orthoped, Shanghai, Peoples R ChinaShanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R China
Wu, Zhipeng
;
Yang, Xinghai
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, ChangZheng Hosp, Dept Orthoped, Shanghai, Peoples R ChinaShanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R China
Yang, Xinghai
;
Xiao, Jianru
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, ChangZheng Hosp, Dept Orthoped, Shanghai, Peoples R ChinaShanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R China
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
Murlidharan, Shrijith
;
Singh, Pankaj Kumar
论文数: 0引用数: 0
h-index: 0
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
Singh, Pankaj Kumar
;
Chandra, P. Sarat
论文数: 0引用数: 0
h-index: 0
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
Chandra, P. Sarat
;
Agarwal, Deepak
论文数: 0引用数: 0
h-index: 0
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
Agarwal, Deepak
;
Kale, Shashank Sharad
论文数: 0引用数: 0
h-index: 0
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
机构:
Toronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, CanadaToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
Taleb, Faisal S.
;
Guha, Abhijit
论文数: 0引用数: 0
h-index: 0
机构:
Toronto Western Hosp, Krembil Neurosci Ctr, Div Neurosurg, Toronto, ON M5T 2S8, Canada
Univ Toronto, Div Neurosurg, Toronto, ON M5S 1A1, CanadaToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
Guha, Abhijit
;
Arnold, Paul M.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Kansas, Med Ctr, Kansas City, KS 66103 USAToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
Arnold, Paul M.
;
Fehlings, Michael G.
论文数: 0引用数: 0
h-index: 0
机构:
Toronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, CanadaToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
Fehlings, Michael G.
;
Massicotte, Eric M.
论文数: 0引用数: 0
h-index: 0
机构:
Toronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, CanadaToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
机构:
Cent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Wang, Jingcheng
;
Liu, Congcong
论文数: 0引用数: 0
h-index: 0
机构:
Cent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Cent S Univ, Xiangya Hosp 2, Dept Spine Surg, Changsha, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Liu, Congcong
;
Wang, Cheng
论文数: 0引用数: 0
h-index: 0
机构:
Univ South China, Affiliated Hosp 1, Dept Spine Surg, Hengyang, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Wang, Cheng
;
Li, Jing
论文数: 0引用数: 0
h-index: 0
机构:
Qinghai Red Cross Hosp, Dept Orthoped, Xining, Qinghai, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Li, Jing
;
Lv, Guohua
论文数: 0引用数: 0
h-index: 0
机构:
Cent S Univ, Xiangya Hosp 2, Dept Emergency Med, Changsha, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Lv, Guohua
;
A, Jiancuo
论文数: 0引用数: 0
h-index: 0
机构:
Qinghai Red Cross Hosp, Dept Orthoped, Xining, Qinghai, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
A, Jiancuo
;
Deng, Youwen
论文数: 0引用数: 0
h-index: 0
机构:
Cent S Univ, Xiangya Hosp 2, Dept Spine Surg, Changsha, Hunan, Peoples R China
Cent S Univ, Xiangya Hosp 2, Dept Emergency Med, Changsha, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Deng, Youwen
;
Wang, Wenjun
论文数: 0引用数: 0
h-index: 0
机构:
Univ South China, Affiliated Hosp 1, Dept Spine Surg, Hengyang, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Zhang, Hongqi
;
Deng, Ang
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Cent South Univ, Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorder, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Deng, Ang
;
Guo, Chaofeng
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Guo, Chaofeng
;
Zhou, Zhenhai
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Cent South Univ, Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorder, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Zhou, Zhenhai
;
Xiao, Lige
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Cent South Univ, Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorder, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
机构:
Univ Ulm, Inst Human Genet, Albert Einstein Allee 11, D-89081 Ulm, GermanyUniv Ulm, Inst Human Genet, Albert Einstein Allee 11, D-89081 Ulm, Germany
Kehrer-Sawatzki, Hildegard
;
Cooper, David N.
论文数: 0引用数: 0
h-index: 0
机构:
Cardiff Univ, Inst Med Genet, Heath Pk, Cardiff CF14 4XN, S Glam, WalesUniv Ulm, Inst Human Genet, Albert Einstein Allee 11, D-89081 Ulm, Germany
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
Lin, Tao
;
Shao, Wei
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
Shao, Wei
;
Zhang, Ke
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
Zhang, Ke
;
Gao, Rui
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
Gao, Rui
;
Zhou, Xuhui
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R ChinaSecond Mil Med Univ, Changzheng Hosp, Affiliated Hosp 2, Dept Orthoped, Shanghai, Peoples R China
机构:
Shanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R ChinaShanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R China
Ma, Junming
;
Wu, Zhipeng
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, ChangZheng Hosp, Dept Orthoped, Shanghai, Peoples R ChinaShanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R China
Wu, Zhipeng
;
Yang, Xinghai
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, ChangZheng Hosp, Dept Orthoped, Shanghai, Peoples R ChinaShanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R China
Yang, Xinghai
;
Xiao, Jianru
论文数: 0引用数: 0
h-index: 0
机构:
Second Mil Med Univ, ChangZheng Hosp, Dept Orthoped, Shanghai, Peoples R ChinaShanghai Univ Tradit Chinese Med, LongHua Hosp, Dept Orthoped, Shanghai, Peoples R China
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
Murlidharan, Shrijith
;
Singh, Pankaj Kumar
论文数: 0引用数: 0
h-index: 0
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
Singh, Pankaj Kumar
;
Chandra, P. Sarat
论文数: 0引用数: 0
h-index: 0
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
Chandra, P. Sarat
;
Agarwal, Deepak
论文数: 0引用数: 0
h-index: 0
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
Agarwal, Deepak
;
Kale, Shashank Sharad
论文数: 0引用数: 0
h-index: 0
机构:
All India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
All India Inst Med Sci, Gamma Knife Ctr, Room 720,7th Floor,CN Tower, New Delhi 110029, IndiaAll India Inst Med Sci, Dept Neurosurg, Room 720,7th Floor,CN Tower, New Delhi 110029, India
机构:
Toronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, CanadaToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
Taleb, Faisal S.
;
Guha, Abhijit
论文数: 0引用数: 0
h-index: 0
机构:
Toronto Western Hosp, Krembil Neurosci Ctr, Div Neurosurg, Toronto, ON M5T 2S8, Canada
Univ Toronto, Div Neurosurg, Toronto, ON M5S 1A1, CanadaToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
Guha, Abhijit
;
Arnold, Paul M.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Kansas, Med Ctr, Kansas City, KS 66103 USAToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
Arnold, Paul M.
;
Fehlings, Michael G.
论文数: 0引用数: 0
h-index: 0
机构:
Toronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, CanadaToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
Fehlings, Michael G.
;
Massicotte, Eric M.
论文数: 0引用数: 0
h-index: 0
机构:
Toronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, CanadaToronto Western Hosp, Krembil Neurosci Ctr, Spinal Program, Toronto, ON M5T 2S8, Canada
机构:
Cent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Wang, Jingcheng
;
Liu, Congcong
论文数: 0引用数: 0
h-index: 0
机构:
Cent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Cent S Univ, Xiangya Hosp 2, Dept Spine Surg, Changsha, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Liu, Congcong
;
Wang, Cheng
论文数: 0引用数: 0
h-index: 0
机构:
Univ South China, Affiliated Hosp 1, Dept Spine Surg, Hengyang, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Wang, Cheng
;
Li, Jing
论文数: 0引用数: 0
h-index: 0
机构:
Qinghai Red Cross Hosp, Dept Orthoped, Xining, Qinghai, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Li, Jing
;
Lv, Guohua
论文数: 0引用数: 0
h-index: 0
机构:
Cent S Univ, Xiangya Hosp 2, Dept Emergency Med, Changsha, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Lv, Guohua
;
A, Jiancuo
论文数: 0引用数: 0
h-index: 0
机构:
Qinghai Red Cross Hosp, Dept Orthoped, Xining, Qinghai, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
A, Jiancuo
;
Deng, Youwen
论文数: 0引用数: 0
h-index: 0
机构:
Cent S Univ, Xiangya Hosp 2, Dept Spine Surg, Changsha, Hunan, Peoples R China
Cent S Univ, Xiangya Hosp 2, Dept Emergency Med, Changsha, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
Deng, Youwen
;
Wang, Wenjun
论文数: 0引用数: 0
h-index: 0
机构:
Univ South China, Affiliated Hosp 1, Dept Spine Surg, Hengyang, Hunan, Peoples R ChinaCent S Univ, Xiangya Hosp 2, Dept Orthoped, Changsha, Hunan, Peoples R China
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Zhang, Hongqi
;
Deng, Ang
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Cent South Univ, Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorder, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Deng, Ang
;
Guo, Chaofeng
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Guo, Chaofeng
;
Zhou, Zhenhai
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Cent South Univ, Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorder, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Zhou, Zhenhai
;
Xiao, Lige
论文数: 0引用数: 0
h-index: 0
机构:
Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China
Cent South Univ, Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorder, Changsha, Peoples R ChinaCent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China