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International Journal of Health Education . Nature 181, 1109 (1958). https://doi.org/10.1038/1811109e0
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DOI: https://doi.org/10.1038/1811109e0
Nature volume 181, page 1109 (1958)
International Journal of Health Education . Nature 181, 1109 (1958). https://doi.org/10.1038/1811109e0
Issue Date:
DOI: https://doi.org/10.1038/1811109e0