Is the incident of once chronic obstructive pulmonary disease related admission a high risk for readmission in the future?

Ling Lu, Min Chen, Xiangju Xing, Xiang Liu, Xiaoling Wei, Li Wang, Yumei Zhao, Jing Xia, Xiaoli Guo, Wei Yao, Jingyu Zou, Xin Sun, Changzheng Wang