| brief survey of common intestinal parasites in the tokyo metropolitan area. | since 1955, when sanitary conditions were poor, the incidence of intestinal parasitism has steadily decreased. similarly, the number of requests for fecal examinations by physicians has also decreased. however, in our hospital, the incidence of parasites detected in fecal material has been increasing since 1994, regardless of the decreasing number of stool exams performed. possible reasons for this situation can be summarized as follows: first, an effective drug for treating trichuris trichiura ... | 1998 | 9796183 |