Drosophila embryos as transitional objects: the work of Donald Poulson and Christiane Nüsslein-Volhard.
Keller
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Massachusetts Institute of Technology, Program in Science, Technology, and Society, Cambridge, Mass.
D000818:Animals; D004330:Drosophila; D004331:Drosophila melanogaster; D004626:Embryology / Q000266:history*; D005823:Genetics / Q000266:history*; D005858:Germany; D049673:History, 20th Century; D014481:United States