Regen i wD oo >) PREFACE Operation CAST did not tnelude a biomedical program. ‘Phe partierpants im Project 4.1 were drawn from various laboratories and were totally unprepared Cor ia field program when the yornt DOD ARC Medieal Research Team was organized alter the operation had begun, Dr. John C. Bugher, Director, Division of Biology and Medicine, AEC, and Lt Col lL. E. Brownie, MC, USA, Surgeon of the Armed Forces Special Weapons Project, selected the project officer and requested that the selection of technical and vrofessional personnel be commenced immediately. Rear Admiral Clarence Brown, Deputy Surgeon General, Medical Department, USN, gave immediate and complete support of all naval medical research activities and assigned responsibility to CAPT Van Tipton. MC, USN, and CDR Harry Etter, MC, USN, of the Atomic Defense Division, Bureau of Medicine and Surgery, USN, for the implementation of the project. Since little detailed information was available about dose and initial symptomatology, the research team was organized to include the following talents for the constitution of the emergency medical team: internal medicine, hematology, radiation technology and radiobiology. In the selection of personne! the emphasis was placed on past experience in biomedical research inthe fleld with atomic weapons. In addition, provisions were made for a second echelon of specialized personnel in case they were needed. Accordingly, a preventive medicine unit of the Conunander m-Chief, Pacihe Fleet, was alerted for possible bacteriologic studies; blood hank personnel, and additional clinicians and nurses were notified in case conditions justified their serviees in the Kwajalein area. Rear Admiral Bartholomew Hogan, MC, USN, Pacific Fleet Medical Officer, rmmediately made any needed medical facil) os of the Pacific Fleet avantable, Personnel were obtained within the Continental limits of the U. S. for the research team as follows: Naval Medical Research Institute (NMRI) 4 medical officers (E. P. Cronkite, project officer, R. A. Conard, N. R. Shulman, and R. S. Farr) 2 medical service corps officers (W. H. Chapman and R. Sharp) 6 enlisted men (C. R. Sipe, P. K. Schork, C. P. A. Strome, W. C. Clutter, R. E. Hansell, J. S. Hamby) U. S. Naval Radiological Defense Laboratory (NRDL) 1 civilian M.D. (V. P. Bond) 1 medical service corps officer (L. J. Smith) 4 enlisted men (W. H. Gibbs, J. C. Hendrie, W. S. Argonza, J. Flanagan) Division of Biology and Medicine, AEC 2 civilian M.D.'s (C,. L. Dunham and G. V. LeRoy) Armed Forces Special Weapons Project (AFSWP) 1 Army Medical Officer (L. E. Browning) Preliminary studies had been made by CDR W. S. Hall, MC, USN, Station Medical Officer and his staff, and decontamination of the individuals was well underway when Project 4.1 person- as 7 ral - - ae aT