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author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Piggott, L. Sir Frederic Williams. _Nature_ 270, 769 (1977).
https://doi.org/10.1038/270769a0 Download citation * Published: 01 December 1977 * Issue Date: 22 December 1977 * DOI: https://doi.org/10.1038/270769a0 SHARE THIS ARTICLE Anyone you share
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