as ASL SO | 3,« Battelle Pacific Northwest Laboratories P.O. Box 999 Richland, Washington U.S.A. 99352 Telephone (509) Telex 15-2874 May 19, 1983 Dr. Edward T. Lessard Brookhaven National Laboratory Associated Universities, Inc. Upton, Long Island, NY 11973 Dear Ed: Thank you very much for your May 2 letter and the update on the Marshallese data. I am glad Charlie asked you to review the SC-57, TG-7 report on Thyroid Cancer. I felt it didn't cover the Marshallese data adequately and suggested in my comments that you be contacted. I noted that your table lists six total thyroid cancer whereas TG-7 report gives seven. Also, I think seven was the number in Bob Conard's report and the number also appears in the UNSCEAR report. I assume this difference of one is the Utrik case you mentioned in your note to Charlie. I probably told you that in our meeting at Majuro in December, the Marshallese expressed their belief that they are experiencing a great excess of thyroid cancer as well as birth defects. I don't know how these erroneous perceptions can ever be corrected. Thank you again for your letter. With best regards, W. Gu Ph.D. Manager Environment, Health and Safety Research Program WJB: 1m