U.S. Department of Health, Education, and Welfare (HEW), U.S. Public Health Service (PHS), Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH),
DHEW (NIOSH) Publication No. 78-129: 1-27
U.S. Department of Health, Education, and Welfare (HEW), U.S. Public Health Service (PHS), Food and Drug Administration (FDA), Bureau of Radiological Health (BRH),
DHEW Publication No. (FDA) 73-8031 (BRH/DBE 73-3): 1-13
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