Effects of delayed fertilization on the development of pronucleus and the segmentation of hamster ova†
M. C. Chang
Worcester Foundation for Experimental Biology, Shrewsbury, Mass. and Department of Biology, Boston University, Boston, Mass.
Search for more papers by this authorLuis Fernandez -Cano
Worcester Foundation for Experimental Biology, Shrewsbury, Mass. and Department of Biology, Boston University, Boston, Mass.
Search for more papers by this authorM. C. Chang
Worcester Foundation for Experimental Biology, Shrewsbury, Mass. and Department of Biology, Boston University, Boston, Mass.
Search for more papers by this authorLuis Fernandez -Cano
Worcester Foundation for Experimental Biology, Shrewsbury, Mass. and Department of Biology, Boston University, Boston, Mass.
Search for more papers by this authorThis work was supported by the Population Council and the Planned Parenthood Federation of America. Thanks are due to Miss D. M. Hunt for assistance and to Dr. G. Pincus for reading the manuscript.

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