OFFICIAL USE’ ONLY -
WT— 938
OPERATION CASTLE — PROJECT 4.1 ADDENDUM
Report to the Scientific Director
EXPOSURE OF MARSHALL ISLANDERS AND
AMERICAN MILITARY PERSONNEL TO FALLOUT
Robert Sharp, LTJG, MSC, USN
William H. Chapman, LT, MSC, USN
Naval Medical ResearchInstitute
Bethesda, Maryland
MARCH 1957
1-2
OFFICIAL USE ONLY