An IL-13 promoter polymorphism associated with liver fibrosis in patients with Schistosoma japonicum. oleh Xin Long, Qian Chen, Jianping Zhao, Nicholas Rafaels, Priyanka Mathias, Huifang Liang, Joseph Potee, Monica Campbell, Bixiang Zhang, Li Gao, Steve N Georas, Donata Vercelli, Terri H Beaty, Ingo Ruczinski, Rasika Mathias, Kathleen C Barnes, Xiaoping Chen