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Thornton, Sheila J., Daniel M. Spielman, Norbert J. Pelc, Wally F. Block, Daniel E. Crocker, Daniel P. Costa, Burney J. LeBoeuf, and Peter W. Hochachka. Effects of Forced Diving On the Spleen and Hepatic Sinus in Northern Elephant Seal Pups. The National Academy of Sciences, 2001.

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