Details of the evolutionary history from invertebrates to vertebrates, as deduced from the sequences of 18S rDNA.
Proc Natl Acad Sci U S A. 1994 Mar 1;91(5):1801-4. doi: 10.1073/pnas.91.5.1801.
Proc Natl Acad Sci U S A. 1994.
PMID: 8127885
Free PMC article.