9Patrick DL, Drossman DA, Frederick IO, et al. Quality of life in persons with irritable bowel syndrome: developmeut and validation of a new measure [J]. Dig Dis Sci, 1998, 43(2): 400-411.
10Tack J, Talley NJ, Camilleri M, et al. Functional gastroduodenal disorders [ J]. Gastroenterology, 2006, 130(5) : 1466-1479.