Global prevalence and risk factors of Enterocytozoon bieneusi infection in humans: a systematic review and meta-analysis oleh Wang Yanchun, Li Xiao-Man, Yang Xing, Wang Xiang-Yu, Wei Yong-Jie, Cai Yanan, Geng Hong-Li, Yang Xin-Bo, Yu Hai-Long, Cao Hongwei, Jiang Jing