References:
- Bleyl SB and Schoenwolf GC, 2010. What is the timeline of important events during pregnancy that may be disrupted by a teratogenic exposure? Teratology Primer, edited by Barbara Hales et al. The Teratology Society.
- Carlson BM, 2008. Human Embryology and Developmental Biology, 4th ed. St. Louis, MO: Elsevier-Health Sciences Division.
- Cochard LR, 2012. Netter’s Atlas of Human Embryology: Updated Edition. Teterboro, NJ: Icon Learning Systems.
- Moore KL et al, 2013. The Developing Human: Clinically Oriented Embryology, 9th ed. Philadelphia, PA: Saunders, an imprint of Elsevier, Inc.
