Clinical and laboratory observation

Risk of hepatoblastoma in familial adenomatous polyposis*

Supported in part by the Clayton and McAshan funds and by grant No. CA44555 from the National Institutes of Health, U.S. Department of Health and Human Services; by the Netherlands Organization for Scientific Research and the Netherlands Digestive Disease Foundation (Dr. Offerhaus); by a young faculty award from E. I. DuPont Nemours (Dr. Hamilton); and by award No. 314 from the International Cancer Research Technology Transfer of the International Union Against Cancer (Mr. Mulder).