1. Estimating the importance of infection in IBS
2. Wang L, Fang X, Pan G. [Intestinal infection and irritable bowel syndrome]. Zhonghua Neike Zazhi 2002;41:90-93.
3. Antibiotics increase functional abdominal symptoms
4. Ran L, Chen ZF, Fu P, Yang BL, Li ZG, Yao JH, Zhao X. A survey on gut flora of 184 cases of healthy populations in Beijing area. Zhongguo Weishengtaixue Zazhi 1999;11:10-12.
5. Zhang DR. Xiao Hua Xi Jibing Yu Weishengtai. The 1st edition Shanghai: Shanghai Science Technol Press; 2001;58-61.