Epidemiology of urticaria in China: a population-based study oleh Jiaqing Li, Dandan Mao, Shuoshuo Liu, Ping Liu, Jing Tian, Chenhong Xue, Xiaojing Liu, Ruiqun Qi, Bingxue Bai, Jianjun Nie, Siqi Ye, Yu Wang, Yuye Li, Qing Sun, Juan Tao, Shuping Guo, Hong Fang, Jianqin Wang, Qiri Mu, Quanzhong Liu, Yan Ding, Jianzhong Zhang, Lishao Guo