Template:Ref-O'Rahilly1970
From Embryology
O'Rahilly R. The manifestation of the axes of the human embryo. (1970) Z. Anat. Entw., 132, 50-57.
O'Rahilly R. The manifestation of the axes of the human embryo. (1970) Z. Anat. Entw., 132, 50-57.