Proc. R. Soc. Lond., B, Biol. Sci., 1963 Dec 10;159:220-45.
PMID: 14087992 DOI: 10.1098/rspb.1963.0074

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.