Early stages of human development.

In Vitro Fertilization and Cleavage of Human Ovarian Eggs

John A. Rock, Miriam F. Menkin · Science · 1944 · 172 citations

Veterinary Medicine, Gynecology, Obstetrics +14

The Early Development of Man, with Special Reference to the Development of the Mesoderm and Cloacal Membrane.

James D. Florian · PubMed · 1933 · 23 citations

Life Sciences, Anatomy, Developmental Biology +14

A human ovum at the previllous stage.

J. Henry Dible, C. M. West · PubMed · 1941 · 10 citations

Life Sciences, Anatomy, Developmental Biology +4