Description
Item Description:"A cooperative research agency of the U.S.A. National Academy of Sciences, National Research Council and Japanese National Institute of Health of the Ministry of Health and Welfare with funds provided by U.S.A. Atomic Energy Commission, Japanese National Institute of Health, U.S.A. Public Health Service."
Physical Description:12 pages : illustrations ; 27 cm.
Bibliography:Includes bibliographical references (pages 11-12).