NEW YORK, June 15 (
Scientists discover why certain cockroaches avoid eating insecticide-containing sugary bait.
NEW YORK, June 15 (Praxis Press) Whether colonoscopy is more effective than barium enema for the detection of adenomas in polypectomy patients is unclear. Winawer and colleagues examined 580 polypectomy patients and performed 862 paired colonoscopies and barium-enema examinations (see abstract). One or more adenomas were detected in 28 percent of the colonoscopies. Out of those 28 percent, barium enemas were only positive for 39 percent of them. In addition, the rate of detection for barium enem
June 15, 2000
NEW YORK, June 15 (