Clinical analysis of 269 botulism cases caused by cosmetic injection of botulinum neurotoxin. (1st February 2019) - Bai, Lili; Peng, Xiaobo; Liu, Yanqing; Sun, Yawei; Wang, Xin; Wang, Xingwang; Lin, Guodong; Feng, Shufang; Zhang, Peng; Wan, Kun; Qiu, Zewu