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[Bethesda, Md.] : National Cancer Institute ; [Atlanta : for loan by National Medical Audiovisual Center ; Washington : for sale by National Audiovisual Center, 1967]
[Bethesda, Md.] : Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Library of Medicine ; [Washington : for sale by National Audiovisual Center], 1979
[Bethesda, Md.] : Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Library of Medicine ; [Washington : for sale by National Audiovisual Center], 1979
[Bethesda, Md.] : Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Library of Medicine ; [Washington : for sale by National Audiovisual Center], 1979
Georgetown, British Guiana : The Unit ; [Atlanta : for loan by National Medical Audiovisual Center ; Washington : for sale by National Audiovisual Center, 1963]