Original case: Liu Du-Zhou A 52 year old male came in for a diagnosis on July 18, 1994. He had diarrhea that had been going on for more than one year and had used many kinds of antibiotics with no avail. Every day he had diarrhea 3 to 6 times, and at the time of the intake it was a watery type with small amount of pus and blood. There was also tenesmus, abdominal tenderness, which was especially severe on…