Axial patterning in cephalochordates and the evolution of the organizer.
Yu, Jr-Kai 1,4; Satou, Yutaka 2; Holland, Nicholas D. 1; Shin-I, Tadasu 3; Kohara, Yuji 3; Satoh, Noriyuki 2; Bronner-Fraser, Marianne 4; Holland, Linda Z. 1
[Article] Nature. 445(7128):613-617, February 8, 2007.

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