Spemann seen through a lens.
Saha
M
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Department of Biology, University of Virginia, Charlottesville 22901.
D000818:Animals; D004626:Embryology / Q000266:history*; D004627:Embryonic Induction; D005060:Europe; D049673:History, 20th Century; D007908:Lens, Crystalline / Q000196:embryology