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Beijing Hosp, Natl Ctr Gerontol Natl Hlth Commiss, Chinese Acad Med Sci, Inst Geriatr Med,Key Lab Geriatr,Beijing Inst Ger, Beijing, Peoples R China
Chinese Acad Med Sci, Peking Union Med Coll, Grad Sch, Beijing, Peoples R China Beijing Hosp, Natl Ctr Gerontol Natl Hlth Commiss, Chinese Acad Med Sci, Inst Geriatr Med,Key Lab Geriatr,Beijing Inst Ger, Beijing, Peoples R China