[1] Shaoxing Peoples Hosp, Dept Geriatr, Shaoxing 312000, Zhejiang, Peoples R China
[2] Shaoxing Univ, Sch Med, Shaoxing 312000, Zhejiang, Peoples R China
[3] Shaoxing Yuecheng Dist Fushan St Community Hlth Se, Shaoxing 312000, Zhejiang, Peoples R China
[4] Shaoxing Yuecheng Dist Beihai St Community Hlth Se, Nursing Dept, Shaoxing 312000, Zhejiang, Peoples R China
[5] Yongkang First Peoples Hosp, Internal Med Clin, Yongkang 321300, Zhejiang, Peoples R China