References

 

O'Rahilly, R. and F. Müller, Developmental Stages of Human Embryos, Carnegie Institution of Washington, Publication 637, 1987.

Streeter, G.L. (1949) Developmental Horizons in Human Embryos (Fourth Issue); A Review of the Histogenesis of Cartilage and Bone, Carnegie Institution of Washington, Publication 583, Contributions to Embryology, 33, 149 - 169.

Streeter, G.L. (1951) Developmental Horizons in Human Embryos; Description of Age Groups XIX, XX, XXI,XXII, and XXIII being the Fifth Isssue of a Survey of the Carnegie Collection, Carnegie Institution of Washington, Publication 592, Contributions to Embryology, 34, 165 - 196.

Weller, G.L. (1933) Development of the Thyroid, Parathyroid and Thymus Glands in Man, Carnegie Institution of Washington, Publication 443, Contributions to Embryology, 24, 93 - 139.

 

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