4Bermans, Munakata J ,Naliboff B D,et al. Gender differences in regionalbrain response to visceral Pressure in IBS Patients[J]. Eur J Pain,2000,4 (2):157 - 172.
5Yuan YZ,Tao RJ,Xu B. et al. Functional brain imaging in irritable bowel syndrome with rectal balloon-distention by using fMR[J]. World J Gastronterol,2003,9(6) :1356 - 1360.