Evaluation of the immunization effectiveness of bOPV booster immunization and IPV revaccination oleh Zhao Yu-ping, Li Jing, Huang Teng, Ying Zhi-fang, Zhao Ting, Che Yan-chun, Zhao Zhi-mei, Fu Yu-ting, Tao Jun-hui, Yang Qing-hai, Wei Ding-kai, Li Guo-liang, Yang Xiao-lei, Yi Li, Chen Hong-bo, Wang Jian-feng, Jiang Rui-ju, Yu Lei, Cai Wei, Yang Wei, Xie Ming-xue, Yin Qiong-zhou, Pu Jing, Shi Li, Hong Chao, Deng Yan, Cai Lu-kui, Zhou Jian, Wen Yu, Li Hong-sen, Huang Wei, Mo Zhao-jun, Li Chang-gui, Li Qi-han, Yang Jing-si