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Health Education in the U.S.S.R.. Nature 177, 1111 (1956). https://doi.org/10.1038/1771111d0
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DOI: https://doi.org/10.1038/1771111d0
Nature volume 177, page 1111 (1956)
Health Education in the U.S.S.R.. Nature 177, 1111 (1956). https://doi.org/10.1038/1771111d0
Issue Date:
DOI: https://doi.org/10.1038/1771111d0