@article {Cameron2000_74,
	title = {Evolution of the chordate body plan: New insights from phylogenetic analyses of deuterostome phyla},
	journal = {Proceedings of the National Academy of Sciences of the United States of America},
	volume = {97},
	number = {9},
	year = {2000},
	pages = {4469{\textendash}4474},
	author = {Cameron, C. B. and Garey, JR and Swalla, B. J.}
}
