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by Clement, C. H.; Tirmarche, M.; Harrison, J. d.; et al.
by Leonard, Bobby E., Ph.d.
by Eisenberg, Steven
by Plechner, Alfred J.; Zucker, Martin
by Karinch, Maryann
by COTTER, ARLENE
by International Commission on Radiological Protection
by Applied Research Press
by U. S. Environmental Protection Agency