CONTE ) 6 April 1954 I rogret that I an unable to give you the results of analysos of urine from the 21 other p»ticnts, Knowing that those cate woulc be hishly important to your committce in its evaluations of the modical stetus of thoso paticnts, wo have offcrod to uncortake radiochemical urine analysis of ell 23 pationts, The urino from only two pationts has Deen Colivorec to us in time to permit shiomont tc tho Statos and enclysis by this datc. More recently, semples from five accitional peticnts from the Tokyo University Hospitel werc delivercd to us, but wo heave not as yot rcecived samzics fron the 16 paticnte now hospitelized at the Daiichi Eospital, ’ Rospectfully yours, Morril Bison>ud Director, Eoalth anc Safcty Laboratory Unitec Statcs Atomic Encrzy Commission Ma/ens/hee CC: Dr. Nakeiczumi br, Kakehi