Comments: 1. Identification numbers 1 to 86 belong to exposed persons of Rongelap and Ailingnae; numbers beginning at 2102 belong to the Utirik exposed; numbers from 805 through 1578 belong to the Comparison group. Entries containing only 9s indicate no data were obtained. Most normal ranges of the indicated tests are given in text. The value of 0.0 for TSH means the level was < 2.5 w/ml, (i.e., not elevated). Codes for HBS, AHBS, AHBC are 0, 1, 9, which indicate, respectively, not present, present, and not performed. 38