%0 Journal Article %T Pre-existing weakness is critical for the occurrence of postoperative cognitive dysfunction in mice of the same age %A Feng Ye %A Gong Chen %A Shangchun Duan %A Shuibing Zhang %A Wen Ouyang %A Wenxiang Qing %A Xueqin Wang %A Yuan Le %A Yujie Tang %J Archive of "PLoS ONE". %D 2017 %R 10.1371/journal.pone.0182471 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5546624/