Article PDF
Rights and permissions
About this article
Cite this article
Wellcome Initiative. Nature 217, 1093 (1968). https://doi.org/10.1038/2171093a0
Issue Date:
DOI: https://doi.org/10.1038/2171093a0
Nature volume 217, page 1093 (1968)
Wellcome Initiative. Nature 217, 1093 (1968). https://doi.org/10.1038/2171093a0
Issue Date:
DOI: https://doi.org/10.1038/2171093a0