PREFACE AND ACKNOWLEDGMENTS unfolded, daily sick call and care of the radiation lesions were carried out by Doctor Shulman along lines decided in general conference of the entire group. Whenepilation and skin lesions appeared, Commander R. A. Conard, MC, USN,was assigned primary responsibility for documentation of the onset, incidence, and detailed description of the skin lesions. During the field phase, Lt. Robert Sharp, MSC, USN, was given the responsibility for decontamination and collection of data from all sources on the radiation intensities of the contaminated atoHs and the calculation of probable doses of radiation received. Paul K. Schork, HMC, USN,was in charge of the Hematology Laboratory. The services of Doctor 8. H. Cohn were requested, and made available by (SNRDLto undertakea field study of the degree of internal contamination, in addition to the studies that were to be performed on urine samples returned to the Los Alamos Scientific Laboratory, New York Operations Office of the Atomic Energy Commission, and the USNRDL. The authors wish to express their gratitude and indebtedness in particular to Doctor John C. Bugher, then Director of the Division of Biology and Medicine, Atomic Energy Commission, who came to the forward area and was always available for counsel. In addition Captain Van Tipton, MC, USN, Director of Atomic Defense Division of the Bureau of Medicine and Surgery, Department of the Navy; Commander Harry Etter. MC, USN; Captain W. E. Kellum, MC, USN; and Captain T. L. Willmon, Commanding and Executive Officers respectively of the Naval Medical Research Insti- tute: Captain R. A. Hinners, USN, Director USNRDL, and Captain A. R. Behnke, MC, USN, Associate Director NRDL; gave unlim- ited support and reduced administrative procedures to a bare minimum, thus making it possible for the unit to be assembled and underway in a matter of hours. Upon arrival at Kwajalein, Rear Admiral R.S. Clarke, USN, Commanding Officer United States Naval Station, Kwajalein, supported the project with all of the facilities at his disposal. As a result, a laboratory and clinic was estab- — . v lished and operating within 24fhours after arrival of the medical team. In addition, we wish to acknq@wledge the out- standing contributions of Col.fC. 5S. Maupin, MC, USA, Field Command Artfed Forces Special Weapons Project: Captainf H. H. Haight, MC, USN, Division of Militafy Application, Atomic Energy Commission; Df. Gordon Dunning, Division of Biology and Medicine, Atomic Energy Commission; and Dr.JH. Scoville of Armed Forces Special Weapong Project who in addition to their primary dutifs, collected extensive data in thefield on the rg@diation intensities of the atolls and kindly fugnished this material tothe project personnel. §Drs. T. 1. Shipman, Thomas White,* and Payge Harris of the Los Alamos Scientific Laboratbry kindly furnished very valuable data on ufinary excretion of radionuclides. The early stBdies of the Los Alamos group in particular qontributed significantly to the information of the degree and nature of internal deposition[of short lived radionuclides. Dr. G. V. L@Roy, Associate Dean, School of Biological Sciehces, University of Chicago, participated in thd early phase of , the study as a consultant to thef[Medical Group. The authors of Chapter I arefparticularly indebted to Dr. C. S. Cook and thq Nuclear Radiation Branch at the Navy Radiqlogical Defense Laboratory for information of energy distribution of the gammaradiation.{/ Data on radiochemical and radioactive decayjrates were supplied by Dr. C. F. Miller anfi the Chemical Technology Division of USNHDL and Dr. R. W. Spense of Los Alamos Scienfific Laboratory. In collecting data on the skin lesions, the help of Billet Edmond, Magshallese school teacher for the Rongelap group in interpretation was invaluable. Miss P§tricia Roan of USNRDILprepared the histhlogic preparations of the skin biopsies and Mf. William Murray and George Needum of FUSNRDLand C. P. A. Strome, HMC, USN] Naval Medical Research Institute performed the excellent color photography. In preparation of the material and writing of Chapter V, the authors are indBbted to Miss C. * Decenused.