31.   The publication reported on three studies of hot dogs and childhood cancers.

32.   A major study has provided more evidence that children of fathers who smoke are more likely to develop childhood cancers, British scientists said Monday.

33.   A number of earlier studies already have suggested a link between fathers smoking and childhood cancers like leukemia and brain tumors.

34.   Acute lymphocytic leukemia is the most common childhood cancer, but still rare.

35.   After a two-year crusade, she persuaded federal health investigators to take a closer look at childhood cancers here.

36.   By combining gene technology and high-speed computers that learn as they go, scientists have determined a way to tell the difference among several childhood cancers that appear similar.

37.   He has a condition which sometimes leads to childhood cancers and underwent neurosurgery for a cranial condition when he was eight weeks old.

38.   In industrial Rochester, federal agency scrutinizes childhood cancers.

39.   It accounts for about eight percent of all childhood cancers, the report said.

40.   Most research indicates the only direct consequence has been a hundred-fold increase in the incidence of childhood thyroid cancers in the affected region.