Template:Ref-Krafka1942
From Embryology
Krafka J. A free human tubal ovum in a late cleavage stage. (1942) Anat. Rec, 82: 426.noinclude>
Krafka J. A free human tubal ovum in a late cleavage stage. (1942) Anat. Rec, 82: 426.noinclude>