In memoriam Pieter D. Nieuwkoop (1917-1996).
Gerhart
J
J
Department of Molecular and Cell Biology, University of California, Berkeley 94720, USA.
D000818:Animals; D015509:Developmental Biology / Q000266:history; D004626:Embryology / Q000266:history; D049673:History, 20th Century; D009426:Netherlands; D014562:Caudata