23 4582 Maryland Parkway WATER RESOURCES CENTER 43 . . =” Desert Research Institute — University of Nevada System Las Vegas, Nevada 89109 (702) 736-2293 October 14, 1977 To Whom It May Concern: This is to certify that the medical history of Mr. Bert Friesen has been compiled by Dr. Cedarblade of Reynolds Electrical and Engineering Company, Inc. (REECO). These records have been reviewed and based upon the advice of Dr. Cedarblade the Desert Research Institute certifies that Mr. Priesen is medically able to complete his assignment on Enewetak Island. Sincerely, Paul R. Fenske Research Professor & Project Manager Water Resource Center MalLager! Nate Cooper Water Resources Center © Energy and Atmospheric Environment Center Applied Ecology and Physiology Center © Human Systems Center