Colonization prevalence and antibiotic susceptibility of Group B Streptococcus in pregnant women over a 6-year period in Dongguan, China. oleh Wenjing Ji, Lihua Zhang, Zhusheng Guo, Shujin Xie, Weiqing Yang, Junjian Chen, Jiamin Wang, Zhiqin Cheng, Xin Wang, Xuehai Zhu, Jianwen Wang, Haiqing Wang, Juan Huang, Ning Liang, David J McIver