-3A resident physican assists in these visits. Because of the particular concern related to radiation effects on the thyroid, a separate baseline comparison group has been established, consisting of approximately 500 persons on Rongelap and Utirik and a limited number of other atolls. While this group does not receive complete annual physical examinations, they do provide a baseline for a number of thyroid function tests and thyroid disease incidence rates, The medical program may need to be expanded in FY 80: 1. Persons who resided on Bikini will be included in the program. , . 2. Baseline medical information will be obtained on persons scheduled to return to Enewetak; this may include in excess of 450 people. 3. It may be necessary to conduct a medical survey of approximately 600 persons who were present on Likiep 4. in 1954. — It is anticipated that based upon radiological surveillance results other population groups (unknown at present) may need to be included. These activities could require $1 million which is above current budget availability. Depending upon medical findings, the medical program in FY 81 is expected to include persons living on Rongelap, Utirik and Likiep, and Bikinians at their residence locations. DOE ARCHIVES eee The greater than three-fold increase anticipated in the population under medical surveillance during FY 80 and FY 81 results in a special problem. The ship which is presently vite