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机构:
Peoples Hosp Ningxia Hui Autonomous Reg, Ningxia Geriatr Dis Clin Res Ctr, Yinchuan, Ningxia, Peoples R China
Cent South Univ, Natl Clin Res Ctr Geriatr Disorders, Xiangya Hosp, Sub Ctr Ningxia, Yinchuan, Ningxia, Peoples R China
Hunan Peoples Hosp, Dept Hunan, Inst Geriatr, Changsha, Peoples R China Cent South Univ, Xiangya Hosp, Dept Spine Surg & Orthopaed, Changsha, Peoples R China