Hugh S. Pratt October 7, 16 M.D. Page nine As new radiologic exposure data from the monitoring of the eco-system and sometimes unexpectéd burdens of isotopes were discovered, was the medical research protocol revised to study the effects. How was this documented; ie, placed in written format or algorithim for management decisions regarding re-jnhabitation, etc.? How were the biochemical samples handled? 1) how many different laboratories were used to determine critical biochemical profiles 2) was a laboratory procedure manual written stressing the importance and details of the technique for drawing, preparing, storing, and transporting each of the biochemical samples 3) were split samples sent to the same and to different labs to check inter and intra laboratory variation?