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Yu, Wei-Ping, Vikneswari Rajasegaran, Kenneth Yew, Wai-lin Loh, Boon-Hui Tay, Chris T. Amemiya, Sydney Brenner, ja Byrappa Venkatesh. Elephant Shark Sequence Reveals Unique Insights Into the Evolutionary History of Vertebrate Genes: A Comparative Analysis of the Protocadherin Cluster. National Academy of Sciences, 2008.

Yu, Wei-Ping, et al. Elephant Shark Sequence Reveals Unique Insights Into the Evolutionary History of Vertebrate Genes: A Comparative Analysis of the Protocadherin Cluster. National Academy of Sciences, 2008.