Template:Ref-Litzenberg1933
From Embryology
Litzenberg JC. A young human ovum of the early somite period. (1933) Amer. J. Obstet. Gynecoi, 26: 519-529.
Litzenberg JC. A young human ovum of the early somite period. (1933) Amer. J. Obstet. Gynecoi, 26: 519-529.