Institutional Residence Protects Against Cognitive Frailty: A Cross-Sectional Study oleh Jin Hua Huang PhD, Qing Song Wang PhD, Rui Min Zhuo Bachelor, Xin Yu Su Bachelor, Qing Yuan Xu Bachelor, Yu Hao Jiang Bachelor, Yu Han Li Bachelor, Song Bai Li Bachelor, Lan Lan Yang Bachelor, Rui Wen Zang Bachelor, Chen Yang Meng Bachelor, Xue Chun Liu PhD